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Finding the Fourth Proportional to 5,572.99, 7,689.20 and 3,447.50

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Solution

The fourth proportional to 5,572.99, 7,689.20 and 3,447.50 is: 4,756.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,572.99 : 7,689.20 = 3,447.50 : x
  2. Step 2: Convert to fraction form
    5,572.99/7,689.20 = 3,447.50/x
  3. Step 3: Cross multiply
    5,572.99x = 7,689.20 × 3,447.50
  4. Step 4: Simplify right side
    5,572.99x = 26,508,517
  5. Step 5: Solve for x
    x = 26,508,517/5,572.99
  6. Step 6: Final answer
    x = 4,756.61

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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.