Home / 3,138.50-4,331.28-1,741.25

Finding the Fourth Proportional to 3,138.50, 4,331.28 and 1,741.25

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Solution

The fourth proportional to 3,138.50, 4,331.28 and 1,741.25 is: 2,403.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.50 : 4,331.28 = 1,741.25 : x
  2. Step 2: Convert to fraction form
    3,138.50/4,331.28 = 1,741.25/x
  3. Step 3: Cross multiply
    3,138.50x = 4,331.28 × 1,741.25
  4. Step 4: Simplify right side
    3,138.50x = 7,541,841.30
  5. Step 5: Solve for x
    x = 7,541,841.30/3,138.50
  6. Step 6: Final answer
    x = 2,403.01

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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.