Home / 2,698.26-4,047.36-1,543.20

Finding the Fourth Proportional to 2,698.26, 4,047.36 and 1,543.20

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Solution

The fourth proportional to 2,698.26, 4,047.36 and 1,543.20 is: 2,314.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,698.26 : 4,047.36 = 1,543.20 : x
  2. Step 2: Convert to fraction form
    2,698.26/4,047.36 = 1,543.20/x
  3. Step 3: Cross multiply
    2,698.26x = 4,047.36 × 1,543.20
  4. Step 4: Simplify right side
    2,698.26x = 6,245,885.95
  5. Step 5: Solve for x
    x = 6,245,885.95/2,698.26
  6. Step 6: Final answer
    x = 2,314.78

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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.