Home / 3,079.43-4,612.45-1,909.72

Finding the Fourth Proportional to 3,079.43, 4,612.45 and 1,909.72

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Solution

The fourth proportional to 3,079.43, 4,612.45 and 1,909.72 is: 2,860.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.43 : 4,612.45 = 1,909.72 : x
  2. Step 2: Convert to fraction form
    3,079.43/4,612.45 = 1,909.72/x
  3. Step 3: Cross multiply
    3,079.43x = 4,612.45 × 1,909.72
  4. Step 4: Simplify right side
    3,079.43x = 8,808,488.01
  5. Step 5: Solve for x
    x = 8,808,488.01/3,079.43
  6. Step 6: Final answer
    x = 2,860.43

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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.