Home / 5,248.28-7,242.54-2,890.64

Finding the Fourth Proportional to 5,248.28, 7,242.54 and 2,890.64

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Solution

The fourth proportional to 5,248.28, 7,242.54 and 2,890.64 is: 3,989.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248.28 : 7,242.54 = 2,890.64 : x
  2. Step 2: Convert to fraction form
    5,248.28/7,242.54 = 2,890.64/x
  3. Step 3: Cross multiply
    5,248.28x = 7,242.54 × 2,890.64
  4. Step 4: Simplify right side
    5,248.28x = 20,935,575.83
  5. Step 5: Solve for x
    x = 20,935,575.83/5,248.28
  6. Step 6: Final answer
    x = 3,989.04

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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.