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Finding the Fourth Proportional to 6,290.79, 9,436.18 and 1,908.24

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Solution

The fourth proportional to 6,290.79, 9,436.18 and 1,908.24 is: 2,862.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.79 : 9,436.18 = 1,908.24 : x
  2. Step 2: Convert to fraction form
    6,290.79/9,436.18 = 1,908.24/x
  3. Step 3: Cross multiply
    6,290.79x = 9,436.18 × 1,908.24
  4. Step 4: Simplify right side
    6,290.79x = 18,006,496.12
  5. Step 5: Solve for x
    x = 18,006,496.12/6,290.79
  6. Step 6: Final answer
    x = 2,862.36

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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.