Home / 3,471.12-5,202.86-1,390.52

Finding the Fourth Proportional to 3,471.12, 5,202.86 and 1,390.52

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Solution

The fourth proportional to 3,471.12, 5,202.86 and 1,390.52 is: 2,084.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471.12 : 5,202.86 = 1,390.52 : x
  2. Step 2: Convert to fraction form
    3,471.12/5,202.86 = 1,390.52/x
  3. Step 3: Cross multiply
    3,471.12x = 5,202.86 × 1,390.52
  4. Step 4: Simplify right side
    3,471.12x = 7,234,686.94
  5. Step 5: Solve for x
    x = 7,234,686.94/3,471.12
  6. Step 6: Final answer
    x = 2,084.25

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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.