Home / 3,154.11-4,728.96-1,398.15

Finding the Fourth Proportional to 3,154.11, 4,728.96 and 1,398.15

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Solution

The fourth proportional to 3,154.11, 4,728.96 and 1,398.15 is: 2,096.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.11 : 4,728.96 = 1,398.15 : x
  2. Step 2: Convert to fraction form
    3,154.11/4,728.96 = 1,398.15/x
  3. Step 3: Cross multiply
    3,154.11x = 4,728.96 × 1,398.15
  4. Step 4: Simplify right side
    3,154.11x = 6,611,795.42
  5. Step 5: Solve for x
    x = 6,611,795.42/3,154.11
  6. Step 6: Final answer
    x = 2,096.25

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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.