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Finding the Fourth Proportional to 6,242.84, 8,616.98 and 3,726.71

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Solution

The fourth proportional to 6,242.84, 8,616.98 and 3,726.71 is: 5,143.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,242.84 : 8,616.98 = 3,726.71 : x
  2. Step 2: Convert to fraction form
    6,242.84/8,616.98 = 3,726.71/x
  3. Step 3: Cross multiply
    6,242.84x = 8,616.98 × 3,726.71
  4. Step 4: Simplify right side
    6,242.84x = 32,112,985.54
  5. Step 5: Solve for x
    x = 32,112,985.54/6,242.84
  6. Step 6: Final answer
    x = 5,143.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.