Home / 7,351.15-10,140.70-4,657.61

Finding the Fourth Proportional to 7,351.15, 10,140.70 and 4,657.61

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Solution

The fourth proportional to 7,351.15, 10,140.70 and 4,657.61 is: 6,425.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.15 : 10,140.70 = 4,657.61 : x
  2. Step 2: Convert to fraction form
    7,351.15/10,140.70 = 4,657.61/x
  3. Step 3: Cross multiply
    7,351.15x = 10,140.70 × 4,657.61
  4. Step 4: Simplify right side
    7,351.15x = 47,231,402.44
  5. Step 5: Solve for x
    x = 47,231,402.44/7,351.15
  6. Step 6: Final answer
    x = 6,425.04

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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.