Home / 3,785.11-5,675.61-1,319.27

Finding the Fourth Proportional to 3,785.11, 5,675.61 and 1,319.27

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Solution

The fourth proportional to 3,785.11, 5,675.61 and 1,319.27 is: 1,978.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.11 : 5,675.61 = 1,319.27 : x
  2. Step 2: Convert to fraction form
    3,785.11/5,675.61 = 1,319.27/x
  3. Step 3: Cross multiply
    3,785.11x = 5,675.61 × 1,319.27
  4. Step 4: Simplify right side
    3,785.11x = 7,487,649.96
  5. Step 5: Solve for x
    x = 7,487,649.96/3,785.11
  6. Step 6: Final answer
    x = 1,978.18

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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.