Home / 5,173.13-7,138.99-3,877.31

Finding the Fourth Proportional to 5,173.13, 7,138.99 and 3,877.31

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Solution

The fourth proportional to 5,173.13, 7,138.99 and 3,877.31 is: 5,350.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.13 : 7,138.99 = 3,877.31 : x
  2. Step 2: Convert to fraction form
    5,173.13/7,138.99 = 3,877.31/x
  3. Step 3: Cross multiply
    5,173.13x = 7,138.99 × 3,877.31
  4. Step 4: Simplify right side
    5,173.13x = 27,680,077.32
  5. Step 5: Solve for x
    x = 27,680,077.32/5,173.13
  6. Step 6: Final answer
    x = 5,350.74

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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.