Home / 3,191.16-4,778.08-1,648.92

Finding the Fourth Proportional to 3,191.16, 4,778.08 and 1,648.92

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Solution

The fourth proportional to 3,191.16, 4,778.08 and 1,648.92 is: 2,468.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.16 : 4,778.08 = 1,648.92 : x
  2. Step 2: Convert to fraction form
    3,191.16/4,778.08 = 1,648.92/x
  3. Step 3: Cross multiply
    3,191.16x = 4,778.08 × 1,648.92
  4. Step 4: Simplify right side
    3,191.16x = 7,878,671.67
  5. Step 5: Solve for x
    x = 7,878,671.67/3,191.16
  6. Step 6: Final answer
    x = 2,468.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.