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Finding the Fourth Proportional to 5,586.99, 8,380.48 and 1,427.00

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Solution

The fourth proportional to 5,586.99, 8,380.48 and 1,427.00 is: 2,140.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,586.99 : 8,380.48 = 1,427.00 : x
  2. Step 2: Convert to fraction form
    5,586.99/8,380.48 = 1,427.00/x
  3. Step 3: Cross multiply
    5,586.99x = 8,380.48 × 1,427.00
  4. Step 4: Simplify right side
    5,586.99x = 11,958,962.34
  5. Step 5: Solve for x
    x = 11,958,962.34/5,586.99
  6. Step 6: Final answer
    x = 2,140.50

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Half scale
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Double scale
Find fourth proportional to 5,587.99, 8,381.98 and 1,428
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.