Home / 3,188.30-4,400.03-1,862.78

Finding the Fourth Proportional to 3,188.30, 4,400.03 and 1,862.78

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Solution

The fourth proportional to 3,188.30, 4,400.03 and 1,862.78 is: 2,570.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.30 : 4,400.03 = 1,862.78 : x
  2. Step 2: Convert to fraction form
    3,188.30/4,400.03 = 1,862.78/x
  3. Step 3: Cross multiply
    3,188.30x = 4,400.03 × 1,862.78
  4. Step 4: Simplify right side
    3,188.30x = 8,196,278.57
  5. Step 5: Solve for x
    x = 8,196,278.57/3,188.30
  6. Step 6: Final answer
    x = 2,570.74

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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.