Home / 2,142.12-2,952.90-1,675.56

Finding the Fourth Proportional to 2,142.12, 2,952.90 and 1,675.56

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Solution

The fourth proportional to 2,142.12, 2,952.90 and 1,675.56 is: 2,309.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142.12 : 2,952.90 = 1,675.56 : x
  2. Step 2: Convert to fraction form
    2,142.12/2,952.90 = 1,675.56/x
  3. Step 3: Cross multiply
    2,142.12x = 2,952.90 × 1,675.56
  4. Step 4: Simplify right side
    2,142.12x = 4,947,761.12
  5. Step 5: Solve for x
    x = 4,947,761.12/2,142.12
  6. Step 6: Final answer
    x = 2,309.75

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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.