Home / 3,101.52-4,280.40-2,314.20

Finding the Fourth Proportional to 3,101.52, 4,280.40 and 2,314.20

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Solution

The fourth proportional to 3,101.52, 4,280.40 and 2,314.20 is: 3,193.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.52 : 4,280.40 = 2,314.20 : x
  2. Step 2: Convert to fraction form
    3,101.52/4,280.40 = 2,314.20/x
  3. Step 3: Cross multiply
    3,101.52x = 4,280.40 × 2,314.20
  4. Step 4: Simplify right side
    3,101.52x = 9,905,701.68
  5. Step 5: Solve for x
    x = 9,905,701.68/3,101.52
  6. Step 6: Final answer
    x = 3,193.82

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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.