Home / 3,720.54-5,129.92-2,394.30

Finding the Fourth Proportional to 3,720.54, 5,129.92 and 2,394.30

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Solution

The fourth proportional to 3,720.54, 5,129.92 and 2,394.30 is: 3,301.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.54 : 5,129.92 = 2,394.30 : x
  2. Step 2: Convert to fraction form
    3,720.54/5,129.92 = 2,394.30/x
  3. Step 3: Cross multiply
    3,720.54x = 5,129.92 × 2,394.30
  4. Step 4: Simplify right side
    3,720.54x = 12,282,567.46
  5. Step 5: Solve for x
    x = 12,282,567.46/3,720.54
  6. Step 6: Final answer
    x = 3,301.29

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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.