Home / 3,177.92-4,387.02-2,130.68

Finding the Fourth Proportional to 3,177.92, 4,387.02 and 2,130.68

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Solution

The fourth proportional to 3,177.92, 4,387.02 and 2,130.68 is: 2,941.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.92 : 4,387.02 = 2,130.68 : x
  2. Step 2: Convert to fraction form
    3,177.92/4,387.02 = 2,130.68/x
  3. Step 3: Cross multiply
    3,177.92x = 4,387.02 × 2,130.68
  4. Step 4: Simplify right side
    3,177.92x = 9,347,335.77
  5. Step 5: Solve for x
    x = 9,347,335.77/3,177.92
  6. Step 6: Final answer
    x = 2,941.34

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Half scale
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Double scale
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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.