Home / 3,419.20-4,715.28-2,298.88

Finding the Fourth Proportional to 3,419.20, 4,715.28 and 2,298.88

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Solution

The fourth proportional to 3,419.20, 4,715.28 and 2,298.88 is: 3,170.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.20 : 4,715.28 = 2,298.88 : x
  2. Step 2: Convert to fraction form
    3,419.20/4,715.28 = 2,298.88/x
  3. Step 3: Cross multiply
    3,419.20x = 4,715.28 × 2,298.88
  4. Step 4: Simplify right side
    3,419.20x = 10,839,862.89
  5. Step 5: Solve for x
    x = 10,839,862.89/3,419.20
  6. Step 6: Final answer
    x = 3,170.29

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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.