Home / 2,251.03-3,376.30-691.05

Finding the Fourth Proportional to 2,251.03, 3,376.30 and 691.05

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Solution

The fourth proportional to 2,251.03, 3,376.30 and 691.05 is: 1,036.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.03 : 3,376.30 = 691.05 : x
  2. Step 2: Convert to fraction form
    2,251.03/3,376.30 = 691.05/x
  3. Step 3: Cross multiply
    2,251.03x = 3,376.30 × 691.05
  4. Step 4: Simplify right side
    2,251.03x = 2,333,192.12
  5. Step 5: Solve for x
    x = 2,333,192.12/2,251.03
  6. Step 6: Final answer
    x = 1,036.50

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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.