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Finding the Fourth Proportional to 1,713.54, 2,364.70 and 1,005.20

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Solution

The fourth proportional to 1,713.54, 2,364.70 and 1,005.20 is: 1,387.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.54 : 2,364.70 = 1,005.20 : x
  2. Step 2: Convert to fraction form
    1,713.54/2,364.70 = 1,005.20/x
  3. Step 3: Cross multiply
    1,713.54x = 2,364.70 × 1,005.20
  4. Step 4: Simplify right side
    1,713.54x = 2,376,996.44
  5. Step 5: Solve for x
    x = 2,376,996.44/1,713.54
  6. Step 6: Final answer
    x = 1,387.18

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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.