Home / 1,740.72-2,612.13-1,631.28

Finding the Fourth Proportional to 1,740.72, 2,612.13 and 1,631.28

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Solution

The fourth proportional to 1,740.72, 2,612.13 and 1,631.28 is: 2,447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,740.72 : 2,612.13 = 1,631.28 : x
  2. Step 2: Convert to fraction form
    1,740.72/2,612.13 = 1,631.28/x
  3. Step 3: Cross multiply
    1,740.72x = 2,612.13 × 1,631.28
  4. Step 4: Simplify right side
    1,740.72x = 4,261,115.43
  5. Step 5: Solve for x
    x = 4,261,115.43/1,740.72
  6. Step 6: Final answer
    x = 2,447.90

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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.