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Finding the Fourth Proportional to 1,494.64, 2,240.52 and 945.46

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Solution

The fourth proportional to 1,494.64, 2,240.52 and 945.46 is: 1,417.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494.64 : 2,240.52 = 945.46 : x
  2. Step 2: Convert to fraction form
    1,494.64/2,240.52 = 945.46/x
  3. Step 3: Cross multiply
    1,494.64x = 2,240.52 × 945.46
  4. Step 4: Simplify right side
    1,494.64x = 2,118,322.04
  5. Step 5: Solve for x
    x = 2,118,322.04/1,494.64
  6. Step 6: Final answer
    x = 1,417.28

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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.