Home / 3,570.95-5,354.60-1,380.31

Finding the Fourth Proportional to 3,570.95, 5,354.60 and 1,380.31

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Solution

The fourth proportional to 3,570.95, 5,354.60 and 1,380.31 is: 2,069.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.95 : 5,354.60 = 1,380.31 : x
  2. Step 2: Convert to fraction form
    3,570.95/5,354.60 = 1,380.31/x
  3. Step 3: Cross multiply
    3,570.95x = 5,354.60 × 1,380.31
  4. Step 4: Simplify right side
    3,570.95x = 7,391,007.93
  5. Step 5: Solve for x
    x = 7,391,007.93/3,570.95
  6. Step 6: Final answer
    x = 2,069.76

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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.