Home / 5,572.24-7,689.56-3,215.68

Finding the Fourth Proportional to 5,572.24, 7,689.56 and 3,215.68

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Solution

The fourth proportional to 5,572.24, 7,689.56 and 3,215.68 is: 4,437.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,572.24 : 7,689.56 = 3,215.68 : x
  2. Step 2: Convert to fraction form
    5,572.24/7,689.56 = 3,215.68/x
  3. Step 3: Cross multiply
    5,572.24x = 7,689.56 × 3,215.68
  4. Step 4: Simplify right side
    5,572.24x = 24,727,164.30
  5. Step 5: Solve for x
    x = 24,727,164.30/5,572.24
  6. Step 6: Final answer
    x = 4,437.56

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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.