Home / 5,145.99-7,681.34-4,420.23

Finding the Fourth Proportional to 5,145.99, 7,681.34 and 4,420.23

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Solution

The fourth proportional to 5,145.99, 7,681.34 and 4,420.23 is: 6,598.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.99 : 7,681.34 = 4,420.23 : x
  2. Step 2: Convert to fraction form
    5,145.99/7,681.34 = 4,420.23/x
  3. Step 3: Cross multiply
    5,145.99x = 7,681.34 × 4,420.23
  4. Step 4: Simplify right side
    5,145.99x = 33,953,267.41
  5. Step 5: Solve for x
    x = 33,953,267.41/5,145.99
  6. Step 6: Final answer
    x = 6,598.00

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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 (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.