Home / 3,176.48-4,382.84-1,779.20

Finding the Fourth Proportional to 3,176.48, 4,382.84 and 1,779.20

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Solution

The fourth proportional to 3,176.48, 4,382.84 and 1,779.20 is: 2,454.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.48 : 4,382.84 = 1,779.20 : x
  2. Step 2: Convert to fraction form
    3,176.48/4,382.84 = 1,779.20/x
  3. Step 3: Cross multiply
    3,176.48x = 4,382.84 × 1,779.20
  4. Step 4: Simplify right side
    3,176.48x = 7,797,948.93
  5. Step 5: Solve for x
    x = 7,797,948.93/3,176.48
  6. Step 6: Final answer
    x = 2,454.90

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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.