Home / 3,298.62-4,552.20-2,121.30

Finding the Fourth Proportional to 3,298.62, 4,552.20 and 2,121.30

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Solution

The fourth proportional to 3,298.62, 4,552.20 and 2,121.30 is: 2,927.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,298.62 : 4,552.20 = 2,121.30 : x
  2. Step 2: Convert to fraction form
    3,298.62/4,552.20 = 2,121.30/x
  3. Step 3: Cross multiply
    3,298.62x = 4,552.20 × 2,121.30
  4. Step 4: Simplify right side
    3,298.62x = 9,656,581.86
  5. Step 5: Solve for x
    x = 9,656,581.86/3,298.62
  6. Step 6: Final answer
    x = 2,927.46

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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.