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Finding the Fourth Proportional to 1,474.80, 2,210.52 and 744.96

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Solution

The fourth proportional to 1,474.80, 2,210.52 and 744.96 is: 1,116.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.80 : 2,210.52 = 744.96 : x
  2. Step 2: Convert to fraction form
    1,474.80/2,210.52 = 744.96/x
  3. Step 3: Cross multiply
    1,474.80x = 2,210.52 × 744.96
  4. Step 4: Simplify right side
    1,474.80x = 1,646,748.98
  5. Step 5: Solve for x
    x = 1,646,748.98/1,474.80
  6. Step 6: Final answer
    x = 1,116.59

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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.