Home / 3,079.08-4,249.11-1,681.83

Finding the Fourth Proportional to 3,079.08, 4,249.11 and 1,681.83

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Solution

The fourth proportional to 3,079.08, 4,249.11 and 1,681.83 is: 2,320.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.08 : 4,249.11 = 1,681.83 : x
  2. Step 2: Convert to fraction form
    3,079.08/4,249.11 = 1,681.83/x
  3. Step 3: Cross multiply
    3,079.08x = 4,249.11 × 1,681.83
  4. Step 4: Simplify right side
    3,079.08x = 7,146,280.67
  5. Step 5: Solve for x
    x = 7,146,280.67/3,079.08
  6. Step 6: Final answer
    x = 2,320.91

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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.