Home / 1,951.32-2,927.34-1,257.66

Finding the Fourth Proportional to 1,951.32, 2,927.34 and 1,257.66

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Solution

The fourth proportional to 1,951.32, 2,927.34 and 1,257.66 is: 1,886.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.32 : 2,927.34 = 1,257.66 : x
  2. Step 2: Convert to fraction form
    1,951.32/2,927.34 = 1,257.66/x
  3. Step 3: Cross multiply
    1,951.32x = 2,927.34 × 1,257.66
  4. Step 4: Simplify right side
    1,951.32x = 3,681,598.42
  5. Step 5: Solve for x
    x = 3,681,598.42/1,951.32
  6. Step 6: Final answer
    x = 1,886.72

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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.