Home / 1,714.74-2,366.35-928.79

Finding the Fourth Proportional to 1,714.74, 2,366.35 and 928.79

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Solution

The fourth proportional to 1,714.74, 2,366.35 and 928.79 is: 1,281.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,714.74 : 2,366.35 = 928.79 : x
  2. Step 2: Convert to fraction form
    1,714.74/2,366.35 = 928.79/x
  3. Step 3: Cross multiply
    1,714.74x = 2,366.35 × 928.79
  4. Step 4: Simplify right side
    1,714.74x = 2,197,837.57
  5. Step 5: Solve for x
    x = 2,197,837.57/1,714.74
  6. Step 6: Final answer
    x = 1,281.73

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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.