Home / 5,124.40-7,071.15-2,885.92

Finding the Fourth Proportional to 5,124.40, 7,071.15 and 2,885.92

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Solution

The fourth proportional to 5,124.40, 7,071.15 and 2,885.92 is: 3,982.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.40 : 7,071.15 = 2,885.92 : x
  2. Step 2: Convert to fraction form
    5,124.40/7,071.15 = 2,885.92/x
  3. Step 3: Cross multiply
    5,124.40x = 7,071.15 × 2,885.92
  4. Step 4: Simplify right side
    5,124.40x = 20,406,773.21
  5. Step 5: Solve for x
    x = 20,406,773.21/5,124.40
  6. Step 6: Final answer
    x = 3,982.28

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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.