Home / 3,115.16-4,671.42-1,264.97

Finding the Fourth Proportional to 3,115.16, 4,671.42 and 1,264.97

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Solution

The fourth proportional to 3,115.16, 4,671.42 and 1,264.97 is: 1,896.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.16 : 4,671.42 = 1,264.97 : x
  2. Step 2: Convert to fraction form
    3,115.16/4,671.42 = 1,264.97/x
  3. Step 3: Cross multiply
    3,115.16x = 4,671.42 × 1,264.97
  4. Step 4: Simplify right side
    3,115.16x = 5,909,193.93
  5. Step 5: Solve for x
    x = 5,909,193.93/3,115.16
  6. Step 6: Final answer
    x = 1,896.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.