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Finding the Fourth Proportional to 6,613.16, 9,918.20 and 1,932.18

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Solution

The fourth proportional to 6,613.16, 9,918.20 and 1,932.18 is: 2,897.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.16 : 9,918.20 = 1,932.18 : x
  2. Step 2: Convert to fraction form
    6,613.16/9,918.20 = 1,932.18/x
  3. Step 3: Cross multiply
    6,613.16x = 9,918.20 × 1,932.18
  4. Step 4: Simplify right side
    6,613.16x = 19,163,738.02
  5. Step 5: Solve for x
    x = 19,163,738.02/6,613.16
  6. Step 6: Final answer
    x = 2,897.82

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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.