Home / 3,176.16-4,382.40-1,778.88

Finding the Fourth Proportional to 3,176.16, 4,382.40 and 1,778.88

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Solution

The fourth proportional to 3,176.16, 4,382.40 and 1,778.88 is: 2,454.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.16 : 4,382.40 = 1,778.88 : x
  2. Step 2: Convert to fraction form
    3,176.16/4,382.40 = 1,778.88/x
  3. Step 3: Cross multiply
    3,176.16x = 4,382.40 × 1,778.88
  4. Step 4: Simplify right side
    3,176.16x = 7,795,763.71
  5. Step 5: Solve for x
    x = 7,795,763.71/3,176.16
  6. Step 6: Final answer
    x = 2,454.46

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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.