Home / 1,352.38-1,865.33-1,307.22

Finding the Fourth Proportional to 1,352.38, 1,865.33 and 1,307.22

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Solution

The fourth proportional to 1,352.38, 1,865.33 and 1,307.22 is: 1,803.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.38 : 1,865.33 = 1,307.22 : x
  2. Step 2: Convert to fraction form
    1,352.38/1,865.33 = 1,307.22/x
  3. Step 3: Cross multiply
    1,352.38x = 1,865.33 × 1,307.22
  4. Step 4: Simplify right side
    1,352.38x = 2,438,396.68
  5. Step 5: Solve for x
    x = 2,438,396.68/1,352.38
  6. Step 6: Final answer
    x = 1,803.04

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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.