Home / 3,177.68-4,385.07-1,851.38

Finding the Fourth Proportional to 3,177.68, 4,385.07 and 1,851.38

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Solution

The fourth proportional to 3,177.68, 4,385.07 and 1,851.38 is: 2,554.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.68 : 4,385.07 = 1,851.38 : x
  2. Step 2: Convert to fraction form
    3,177.68/4,385.07 = 1,851.38/x
  3. Step 3: Cross multiply
    3,177.68x = 4,385.07 × 1,851.38
  4. Step 4: Simplify right side
    3,177.68x = 8,118,430.90
  5. Step 5: Solve for x
    x = 8,118,430.90/3,177.68
  6. Step 6: Final answer
    x = 2,554.83

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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.