Home / 5,177.30-7,144.70-3,187.36

Finding the Fourth Proportional to 5,177.30, 7,144.70 and 3,187.36

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Solution

The fourth proportional to 5,177.30, 7,144.70 and 3,187.36 is: 4,398.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.30 : 7,144.70 = 3,187.36 : x
  2. Step 2: Convert to fraction form
    5,177.30/7,144.70 = 3,187.36/x
  3. Step 3: Cross multiply
    5,177.30x = 7,144.70 × 3,187.36
  4. Step 4: Simplify right side
    5,177.30x = 22,772,730.99
  5. Step 5: Solve for x
    x = 22,772,730.99/5,177.30
  6. Step 6: Final answer
    x = 4,398.57

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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.