Home / 4,185.28-5,779.56-3,135.52

Finding the Fourth Proportional to 4,185.28, 5,779.56 and 3,135.52

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Solution

The fourth proportional to 4,185.28, 5,779.56 and 3,135.52 is: 4,329.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.28 : 5,779.56 = 3,135.52 : x
  2. Step 2: Convert to fraction form
    4,185.28/5,779.56 = 3,135.52/x
  3. Step 3: Cross multiply
    4,185.28x = 5,779.56 × 3,135.52
  4. Step 4: Simplify right side
    4,185.28x = 18,121,925.97
  5. Step 5: Solve for x
    x = 18,121,925.97/4,185.28
  6. Step 6: Final answer
    x = 4,329.92

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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.