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Finding the Fourth Proportional to 1,714.34, 2,570.88 and 660.02

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Solution

The fourth proportional to 1,714.34, 2,570.88 and 660.02 is: 989.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,714.34 : 2,570.88 = 660.02 : x
  2. Step 2: Convert to fraction form
    1,714.34/2,570.88 = 660.02/x
  3. Step 3: Cross multiply
    1,714.34x = 2,570.88 × 660.02
  4. Step 4: Simplify right side
    1,714.34x = 1,696,832.22
  5. Step 5: Solve for x
    x = 1,696,832.22/1,714.34
  6. Step 6: Final answer
    x = 989.79

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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.