Home / 2,638.12-3,955.96-1,542.82

Finding the Fourth Proportional to 2,638.12, 3,955.96 and 1,542.82

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Solution

The fourth proportional to 2,638.12, 3,955.96 and 1,542.82 is: 2,313.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.12 : 3,955.96 = 1,542.82 : x
  2. Step 2: Convert to fraction form
    2,638.12/3,955.96 = 1,542.82/x
  3. Step 3: Cross multiply
    2,638.12x = 3,955.96 × 1,542.82
  4. Step 4: Simplify right side
    2,638.12x = 6,103,334.21
  5. Step 5: Solve for x
    x = 6,103,334.21/2,638.12
  6. Step 6: Final answer
    x = 2,313.52

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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.