Home / 3,293.28-4,545.24-2,115.60

Finding the Fourth Proportional to 3,293.28, 4,545.24 and 2,115.60

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Solution

The fourth proportional to 3,293.28, 4,545.24 and 2,115.60 is: 2,919.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,293.28 : 4,545.24 = 2,115.60 : x
  2. Step 2: Convert to fraction form
    3,293.28/4,545.24 = 2,115.60/x
  3. Step 3: Cross multiply
    3,293.28x = 4,545.24 × 2,115.60
  4. Step 4: Simplify right side
    3,293.28x = 9,615,909.74
  5. Step 5: Solve for x
    x = 9,615,909.74/3,293.28
  6. Step 6: Final answer
    x = 2,919.86

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1.5x scale

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.