Home / 2,276.06-3,139.85-1,425.16

Finding the Fourth Proportional to 2,276.06, 3,139.85 and 1,425.16

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Solution

The fourth proportional to 2,276.06, 3,139.85 and 1,425.16 is: 1,966.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.06 : 3,139.85 = 1,425.16 : x
  2. Step 2: Convert to fraction form
    2,276.06/3,139.85 = 1,425.16/x
  3. Step 3: Cross multiply
    2,276.06x = 3,139.85 × 1,425.16
  4. Step 4: Simplify right side
    2,276.06x = 4,474,765.80
  5. Step 5: Solve for x
    x = 4,474,765.80/2,276.06
  6. Step 6: Final answer
    x = 1,966.01

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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.