Home / 1,714.73-2,366.35-928.78

Finding the Fourth Proportional to 1,714.73, 2,366.35 and 928.78

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Solution

The fourth proportional to 1,714.73, 2,366.35 and 928.78 is: 1,281.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,714.73 : 2,366.35 = 928.78 : x
  2. Step 2: Convert to fraction form
    1,714.73/2,366.35 = 928.78/x
  3. Step 3: Cross multiply
    1,714.73x = 2,366.35 × 928.78
  4. Step 4: Simplify right side
    1,714.73x = 2,197,806.72
  5. Step 5: Solve for x
    x = 2,197,806.72/1,714.73
  6. Step 6: Final answer
    x = 1,281.72

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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.