Home / 1,459.13-2,188.85-471.87

Finding the Fourth Proportional to 1,459.13, 2,188.85 and 471.87

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Solution

The fourth proportional to 1,459.13, 2,188.85 and 471.87 is: 707.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,459.13 : 2,188.85 = 471.87 : x
  2. Step 2: Convert to fraction form
    1,459.13/2,188.85 = 471.87/x
  3. Step 3: Cross multiply
    1,459.13x = 2,188.85 × 471.87
  4. Step 4: Simplify right side
    1,459.13x = 1,032,850.29
  5. Step 5: Solve for x
    x = 1,032,850.29/1,459.13
  6. Step 6: Final answer
    x = 707.86

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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.