Home / 3,132.93-4,321.37-2,015.28

Finding the Fourth Proportional to 3,132.93, 4,321.37 and 2,015.28

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Solution

The fourth proportional to 3,132.93, 4,321.37 and 2,015.28 is: 2,779.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.93 : 4,321.37 = 2,015.28 : x
  2. Step 2: Convert to fraction form
    3,132.93/4,321.37 = 2,015.28/x
  3. Step 3: Cross multiply
    3,132.93x = 4,321.37 × 2,015.28
  4. Step 4: Simplify right side
    3,132.93x = 8,708,770.53
  5. Step 5: Solve for x
    x = 8,708,770.53/3,132.93
  6. Step 6: Final answer
    x = 2,779.75

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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.