Home / 1,671.13-2,306.15-935.13

Finding the Fourth Proportional to 1,671.13, 2,306.15 and 935.13

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Solution

The fourth proportional to 1,671.13, 2,306.15 and 935.13 is: 1,290.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.13 : 2,306.15 = 935.13 : x
  2. Step 2: Convert to fraction form
    1,671.13/2,306.15 = 935.13/x
  3. Step 3: Cross multiply
    1,671.13x = 2,306.15 × 935.13
  4. Step 4: Simplify right side
    1,671.13x = 2,156,550.05
  5. Step 5: Solve for x
    x = 2,156,550.05/1,671.13
  6. Step 6: Final answer
    x = 1,290.47

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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.