Home / 3,079.20-4,248.09-1,898.22

Finding the Fourth Proportional to 3,079.20, 4,248.09 and 1,898.22

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Solution

The fourth proportional to 3,079.20, 4,248.09 and 1,898.22 is: 2,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.20 : 4,248.09 = 1,898.22 : x
  2. Step 2: Convert to fraction form
    3,079.20/4,248.09 = 1,898.22/x
  3. Step 3: Cross multiply
    3,079.20x = 4,248.09 × 1,898.22
  4. Step 4: Simplify right side
    3,079.20x = 8,063,809.40
  5. Step 5: Solve for x
    x = 8,063,809.40/3,079.20
  6. Step 6: Final answer
    x = 2,618.80

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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.