Home / 5,507.40-7,600.25-2,989.55

Finding the Fourth Proportional to 5,507.40, 7,600.25 and 2,989.55

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Solution

The fourth proportional to 5,507.40, 7,600.25 and 2,989.55 is: 4,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,507.40 : 7,600.25 = 2,989.55 : x
  2. Step 2: Convert to fraction form
    5,507.40/7,600.25 = 2,989.55/x
  3. Step 3: Cross multiply
    5,507.40x = 7,600.25 × 2,989.55
  4. Step 4: Simplify right side
    5,507.40x = 22,721,331.44
  5. Step 5: Solve for x
    x = 22,721,331.44/5,507.40
  6. Step 6: Final answer
    x = 4,125.60

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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.