Home / 2,213.30-3,320.85-1,117.97

Finding the Fourth Proportional to 2,213.30, 3,320.85 and 1,117.97

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Solution

The fourth proportional to 2,213.30, 3,320.85 and 1,117.97 is: 1,677.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.30 : 3,320.85 = 1,117.97 : x
  2. Step 2: Convert to fraction form
    2,213.30/3,320.85 = 1,117.97/x
  3. Step 3: Cross multiply
    2,213.30x = 3,320.85 × 1,117.97
  4. Step 4: Simplify right side
    2,213.30x = 3,712,623.17
  5. Step 5: Solve for x
    x = 3,712,623.17/2,213.30
  6. Step 6: Final answer
    x = 1,677.42

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1.5x scale

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.