Home / 3,138.55-4,331.01-1,741.30

Finding the Fourth Proportional to 3,138.55, 4,331.01 and 1,741.30

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Solution

The fourth proportional to 3,138.55, 4,331.01 and 1,741.30 is: 2,402.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.55 : 4,331.01 = 1,741.30 : x
  2. Step 2: Convert to fraction form
    3,138.55/4,331.01 = 1,741.30/x
  3. Step 3: Cross multiply
    3,138.55x = 4,331.01 × 1,741.30
  4. Step 4: Simplify right side
    3,138.55x = 7,541,587.71
  5. Step 5: Solve for x
    x = 7,541,587.71/3,138.55
  6. Step 6: Final answer
    x = 2,402.89

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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.