Home / 2,355.91-3,251.30-1,307.97

Finding the Fourth Proportional to 2,355.91, 3,251.30 and 1,307.97

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Solution

The fourth proportional to 2,355.91, 3,251.30 and 1,307.97 is: 1,805.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,355.91 : 3,251.30 = 1,307.97 : x
  2. Step 2: Convert to fraction form
    2,355.91/3,251.30 = 1,307.97/x
  3. Step 3: Cross multiply
    2,355.91x = 3,251.30 × 1,307.97
  4. Step 4: Simplify right side
    2,355.91x = 4,252,602.86
  5. Step 5: Solve for x
    x = 4,252,602.86/2,355.91
  6. Step 6: Final answer
    x = 1,805.08

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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.