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Finding the Fourth Proportional to 1,544.47, 2,317.14 and 666.49

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Solution

The fourth proportional to 1,544.47, 2,317.14 and 666.49 is: 999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.47 : 2,317.14 = 666.49 : x
  2. Step 2: Convert to fraction form
    1,544.47/2,317.14 = 666.49/x
  3. Step 3: Cross multiply
    1,544.47x = 2,317.14 × 666.49
  4. Step 4: Simplify right side
    1,544.47x = 1,544,350.64
  5. Step 5: Solve for x
    x = 1,544,350.64/1,544.47
  6. Step 6: Final answer
    x = 999.92

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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.