Home / 4,957.20-7,440.66-4,140.72

Finding the Fourth Proportional to 4,957.20, 7,440.66 and 4,140.72

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Solution

The fourth proportional to 4,957.20, 7,440.66 and 4,140.72 is: 6,215.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,957.20 : 7,440.66 = 4,140.72 : x
  2. Step 2: Convert to fraction form
    4,957.20/7,440.66 = 4,140.72/x
  3. Step 3: Cross multiply
    4,957.20x = 7,440.66 × 4,140.72
  4. Step 4: Simplify right side
    4,957.20x = 30,809,689.68
  5. Step 5: Solve for x
    x = 30,809,689.68/4,957.20
  6. Step 6: Final answer
    x = 6,215.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.