Home / 2,801.88-3,866.46-1,543.14

Finding the Fourth Proportional to 2,801.88, 3,866.46 and 1,543.14

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Solution

The fourth proportional to 2,801.88, 3,866.46 and 1,543.14 is: 2,129.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801.88 : 3,866.46 = 1,543.14 : x
  2. Step 2: Convert to fraction form
    2,801.88/3,866.46 = 1,543.14/x
  3. Step 3: Cross multiply
    2,801.88x = 3,866.46 × 1,543.14
  4. Step 4: Simplify right side
    2,801.88x = 5,966,489.08
  5. Step 5: Solve for x
    x = 5,966,489.08/2,801.88
  6. Step 6: Final answer
    x = 2,129.46

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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.