Home / 1,671.18-2,306.07-972.42

Finding the Fourth Proportional to 1,671.18, 2,306.07 and 972.42

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Solution

The fourth proportional to 1,671.18, 2,306.07 and 972.42 is: 1,341.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.18 : 2,306.07 = 972.42 : x
  2. Step 2: Convert to fraction form
    1,671.18/2,306.07 = 972.42/x
  3. Step 3: Cross multiply
    1,671.18x = 2,306.07 × 972.42
  4. Step 4: Simplify right side
    1,671.18x = 2,242,468.59
  5. Step 5: Solve for x
    x = 2,242,468.59/1,671.18
  6. Step 6: Final answer
    x = 1,341.85

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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.