Home / 3,314.28-4,573.26-1,987.68

Finding the Fourth Proportional to 3,314.28, 4,573.26 and 1,987.68

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Solution

The fourth proportional to 3,314.28, 4,573.26 and 1,987.68 is: 2,742.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,314.28 : 4,573.26 = 1,987.68 : x
  2. Step 2: Convert to fraction form
    3,314.28/4,573.26 = 1,987.68/x
  3. Step 3: Cross multiply
    3,314.28x = 4,573.26 × 1,987.68
  4. Step 4: Simplify right side
    3,314.28x = 9,090,177.44
  5. Step 5: Solve for x
    x = 9,090,177.44/3,314.28
  6. Step 6: Final answer
    x = 2,742.73

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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.