Home / 7,127.12-10,685.52-2,743.76

Finding the Fourth Proportional to 7,127.12, 10,685.52 and 2,743.76

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Solution

The fourth proportional to 7,127.12, 10,685.52 and 2,743.76 is: 4,113.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.12 : 10,685.52 = 2,743.76 : x
  2. Step 2: Convert to fraction form
    7,127.12/10,685.52 = 2,743.76/x
  3. Step 3: Cross multiply
    7,127.12x = 10,685.52 × 2,743.76
  4. Step 4: Simplify right side
    7,127.12x = 29,318,502.36
  5. Step 5: Solve for x
    x = 29,318,502.36/7,127.12
  6. Step 6: Final answer
    x = 4,113.65

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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.