Home / 2,951.28-4,427.40-1,412.28

Finding the Fourth Proportional to 2,951.28, 4,427.40 and 1,412.28

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Solution

The fourth proportional to 2,951.28, 4,427.40 and 1,412.28 is: 2,118.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.28 : 4,427.40 = 1,412.28 : x
  2. Step 2: Convert to fraction form
    2,951.28/4,427.40 = 1,412.28/x
  3. Step 3: Cross multiply
    2,951.28x = 4,427.40 × 1,412.28
  4. Step 4: Simplify right side
    2,951.28x = 6,252,728.47
  5. Step 5: Solve for x
    x = 6,252,728.47/2,951.28
  6. Step 6: Final answer
    x = 2,118.65

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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.