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Finding the Fourth Proportional to 6,381.40, 8,797.08 and 4,610.20

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Solution

The fourth proportional to 6,381.40, 8,797.08 and 4,610.20 is: 6,355.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.40 : 8,797.08 = 4,610.20 : x
  2. Step 2: Convert to fraction form
    6,381.40/8,797.08 = 4,610.20/x
  3. Step 3: Cross multiply
    6,381.40x = 8,797.08 × 4,610.20
  4. Step 4: Simplify right side
    6,381.40x = 40,556,298.22
  5. Step 5: Solve for x
    x = 40,556,298.22/6,381.40
  6. Step 6: Final answer
    x = 6,355.39

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.