Home / 2,257.96-3,387.28-698.12

Finding the Fourth Proportional to 2,257.96, 3,387.28 and 698.12

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Solution

The fourth proportional to 2,257.96, 3,387.28 and 698.12 is: 1,047.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.96 : 3,387.28 = 698.12 : x
  2. Step 2: Convert to fraction form
    2,257.96/3,387.28 = 698.12/x
  3. Step 3: Cross multiply
    2,257.96x = 3,387.28 × 698.12
  4. Step 4: Simplify right side
    2,257.96x = 2,364,727.91
  5. Step 5: Solve for x
    x = 2,364,727.91/2,257.96
  6. Step 6: Final answer
    x = 1,047.29

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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.