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Finding the Fourth Proportional to 4,291.82, 5,918.02 and 3,727.30

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Solution

The fourth proportional to 4,291.82, 5,918.02 and 3,727.30 is: 5,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.82 : 5,918.02 = 3,727.30 : x
  2. Step 2: Convert to fraction form
    4,291.82/5,918.02 = 3,727.30/x
  3. Step 3: Cross multiply
    4,291.82x = 5,918.02 × 3,727.30
  4. Step 4: Simplify right side
    4,291.82x = 22,058,235.95
  5. Step 5: Solve for x
    x = 22,058,235.95/4,291.82
  6. Step 6: Final answer
    x = 5,139.60

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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.