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Finding the Fourth Proportional to 1,684.98, 2,527.47 and 712.17

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Solution

The fourth proportional to 1,684.98, 2,527.47 and 712.17 is: 1,068.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.98 : 2,527.47 = 712.17 : x
  2. Step 2: Convert to fraction form
    1,684.98/2,527.47 = 712.17/x
  3. Step 3: Cross multiply
    1,684.98x = 2,527.47 × 712.17
  4. Step 4: Simplify right side
    1,684.98x = 1,799,988.31
  5. Step 5: Solve for x
    x = 1,799,988.31/1,684.98
  6. Step 6: Final answer
    x = 1,068.26

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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.