Home / 3,989.15-5,503.38-2,572.53

Finding the Fourth Proportional to 3,989.15, 5,503.38 and 2,572.53

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Solution

The fourth proportional to 3,989.15, 5,503.38 and 2,572.53 is: 3,549.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.15 : 5,503.38 = 2,572.53 : x
  2. Step 2: Convert to fraction form
    3,989.15/5,503.38 = 2,572.53/x
  3. Step 3: Cross multiply
    3,989.15x = 5,503.38 × 2,572.53
  4. Step 4: Simplify right side
    3,989.15x = 14,157,579.87
  5. Step 5: Solve for x
    x = 14,157,579.87/3,989.15
  6. Step 6: Final answer
    x = 3,549.02

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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.