Home / 3,580.32-5,370.71-1,240.55

Finding the Fourth Proportional to 3,580.32, 5,370.71 and 1,240.55

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Solution

The fourth proportional to 3,580.32, 5,370.71 and 1,240.55 is: 1,860.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.32 : 5,370.71 = 1,240.55 : x
  2. Step 2: Convert to fraction form
    3,580.32/5,370.71 = 1,240.55/x
  3. Step 3: Cross multiply
    3,580.32x = 5,370.71 × 1,240.55
  4. Step 4: Simplify right side
    3,580.32x = 6,662,634.29
  5. Step 5: Solve for x
    x = 6,662,634.29/3,580.32
  6. Step 6: Final answer
    x = 1,860.90

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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.