Home / 7,742.16-11,613.11-1,898.78

Finding the Fourth Proportional to 7,742.16, 11,613.11 and 1,898.78

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Solution

The fourth proportional to 7,742.16, 11,613.11 and 1,898.78 is: 2,848.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.16 : 11,613.11 = 1,898.78 : x
  2. Step 2: Convert to fraction form
    7,742.16/11,613.11 = 1,898.78/x
  3. Step 3: Cross multiply
    7,742.16x = 11,613.11 × 1,898.78
  4. Step 4: Simplify right side
    7,742.16x = 22,050,673.45
  5. Step 5: Solve for x
    x = 22,050,673.45/7,742.16
  6. Step 6: Final answer
    x = 2,848.13

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Similar ratio
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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.