Home / 4,001.38-5,519.28-2,430.40

Finding the Fourth Proportional to 4,001.38, 5,519.28 and 2,430.40

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Solution

The fourth proportional to 4,001.38, 5,519.28 and 2,430.40 is: 3,352.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,001.38 : 5,519.28 = 2,430.40 : x
  2. Step 2: Convert to fraction form
    4,001.38/5,519.28 = 2,430.40/x
  3. Step 3: Cross multiply
    4,001.38x = 5,519.28 × 2,430.40
  4. Step 4: Simplify right side
    4,001.38x = 13,414,058.11
  5. Step 5: Solve for x
    x = 13,414,058.11/4,001.38
  6. Step 6: Final answer
    x = 3,352.36

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Half scale
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Double scale
Find fourth proportional to 4,002.38, 5,520.66 and 2,431.40
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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.