Home / 3,079.57-4,250.30-2,421.42

Finding the Fourth Proportional to 3,079.57, 4,250.30 and 2,421.42

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Solution

The fourth proportional to 3,079.57, 4,250.30 and 2,421.42 is: 3,341.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.57 : 4,250.30 = 2,421.42 : x
  2. Step 2: Convert to fraction form
    3,079.57/4,250.30 = 2,421.42/x
  3. Step 3: Cross multiply
    3,079.57x = 4,250.30 × 2,421.42
  4. Step 4: Simplify right side
    3,079.57x = 10,291,752.14
  5. Step 5: Solve for x
    x = 10,291,752.14/3,079.57
  6. Step 6: Final answer
    x = 3,341.95

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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.