Home / 5,419.28-7,479.57-3,507.45

Finding the Fourth Proportional to 5,419.28, 7,479.57 and 3,507.45

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Solution

The fourth proportional to 5,419.28, 7,479.57 and 3,507.45 is: 4,840.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.28 : 7,479.57 = 3,507.45 : x
  2. Step 2: Convert to fraction form
    5,419.28/7,479.57 = 3,507.45/x
  3. Step 3: Cross multiply
    5,419.28x = 7,479.57 × 3,507.45
  4. Step 4: Simplify right side
    5,419.28x = 26,234,217.80
  5. Step 5: Solve for x
    x = 26,234,217.80/5,419.28
  6. Step 6: Final answer
    x = 4,840.91

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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.