Home / 7,328.28-10,990.32-2,398.20

Finding the Fourth Proportional to 7,328.28, 10,990.32 and 2,398.20

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Solution

The fourth proportional to 7,328.28, 10,990.32 and 2,398.20 is: 3,596.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.28 : 10,990.32 = 2,398.20 : x
  2. Step 2: Convert to fraction form
    7,328.28/10,990.32 = 2,398.20/x
  3. Step 3: Cross multiply
    7,328.28x = 10,990.32 × 2,398.20
  4. Step 4: Simplify right side
    7,328.28x = 26,356,985.42
  5. Step 5: Solve for x
    x = 26,356,985.42/7,328.28
  6. Step 6: Final answer
    x = 3,596.61

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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.