Home / 1,631.64-2,251.04-1,072.42

Finding the Fourth Proportional to 1,631.64, 2,251.04 and 1,072.42

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Solution

The fourth proportional to 1,631.64, 2,251.04 and 1,072.42 is: 1,479.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.64 : 2,251.04 = 1,072.42 : x
  2. Step 2: Convert to fraction form
    1,631.64/2,251.04 = 1,072.42/x
  3. Step 3: Cross multiply
    1,631.64x = 2,251.04 × 1,072.42
  4. Step 4: Simplify right side
    1,631.64x = 2,414,060.32
  5. Step 5: Solve for x
    x = 2,414,060.32/1,631.64
  6. Step 6: Final answer
    x = 1,479.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.