Home / 3,177.23-4,385.12-1,851.71

Finding the Fourth Proportional to 3,177.23, 4,385.12 and 1,851.71

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Solution

The fourth proportional to 3,177.23, 4,385.12 and 1,851.71 is: 2,555.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.23 : 4,385.12 = 1,851.71 : x
  2. Step 2: Convert to fraction form
    3,177.23/4,385.12 = 1,851.71/x
  3. Step 3: Cross multiply
    3,177.23x = 4,385.12 × 1,851.71
  4. Step 4: Simplify right side
    3,177.23x = 8,119,970.56
  5. Step 5: Solve for x
    x = 8,119,970.56/3,177.23
  6. Step 6: Final answer
    x = 2,555.68

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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.