Home / 5,610.65-7,740.81-3,622.55

Finding the Fourth Proportional to 5,610.65, 7,740.81 and 3,622.55

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Solution

The fourth proportional to 5,610.65, 7,740.81 and 3,622.55 is: 4,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,610.65 : 7,740.81 = 3,622.55 : x
  2. Step 2: Convert to fraction form
    5,610.65/7,740.81 = 3,622.55/x
  3. Step 3: Cross multiply
    5,610.65x = 7,740.81 × 3,622.55
  4. Step 4: Simplify right side
    5,610.65x = 28,041,432.56
  5. Step 5: Solve for x
    x = 28,041,432.56/5,610.65
  6. Step 6: Final answer
    x = 4,997.90

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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.