Home / 2,543.31-3,813.99-1,021.41

Finding the Fourth Proportional to 2,543.31, 3,813.99 and 1,021.41

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Solution

The fourth proportional to 2,543.31, 3,813.99 and 1,021.41 is: 1,531.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.31 : 3,813.99 = 1,021.41 : x
  2. Step 2: Convert to fraction form
    2,543.31/3,813.99 = 1,021.41/x
  3. Step 3: Cross multiply
    2,543.31x = 3,813.99 × 1,021.41
  4. Step 4: Simplify right side
    2,543.31x = 3,895,643.70
  5. Step 5: Solve for x
    x = 3,895,643.70/2,543.31
  6. Step 6: Final answer
    x = 1,531.72

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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.