Home / 1,352.20-1,866.90-1,104.12

Finding the Fourth Proportional to 1,352.20, 1,866.90 and 1,104.12

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Solution

The fourth proportional to 1,352.20, 1,866.90 and 1,104.12 is: 1,524.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.20 : 1,866.90 = 1,104.12 : x
  2. Step 2: Convert to fraction form
    1,352.20/1,866.90 = 1,104.12/x
  3. Step 3: Cross multiply
    1,352.20x = 1,866.90 × 1,104.12
  4. Step 4: Simplify right side
    1,352.20x = 2,061,281.63
  5. Step 5: Solve for x
    x = 2,061,281.63/1,352.20
  6. Step 6: Final answer
    x = 1,524.39

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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.