Home / 2,219.35-3,331.05-1,124.47

Finding the Fourth Proportional to 2,219.35, 3,331.05 and 1,124.47

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Solution

The fourth proportional to 2,219.35, 3,331.05 and 1,124.47 is: 1,687.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.35 : 3,331.05 = 1,124.47 : x
  2. Step 2: Convert to fraction form
    2,219.35/3,331.05 = 1,124.47/x
  3. Step 3: Cross multiply
    2,219.35x = 3,331.05 × 1,124.47
  4. Step 4: Simplify right side
    2,219.35x = 3,745,657.47
  5. Step 5: Solve for x
    x = 3,745,657.47/2,219.35
  6. Step 6: Final answer
    x = 1,687.73

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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.