Home / 3,500.15-5,250.42-1,419.85

Finding the Fourth Proportional to 3,500.15, 5,250.42 and 1,419.85

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Solution

The fourth proportional to 3,500.15, 5,250.42 and 1,419.85 is: 2,129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.15 : 5,250.42 = 1,419.85 : x
  2. Step 2: Convert to fraction form
    3,500.15/5,250.42 = 1,419.85/x
  3. Step 3: Cross multiply
    3,500.15x = 5,250.42 × 1,419.85
  4. Step 4: Simplify right side
    3,500.15x = 7,454,795.71
  5. Step 5: Solve for x
    x = 7,454,795.71/3,500.15
  6. Step 6: Final answer
    x = 2,129.85

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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.