Home / 3,500.40-5,250.54-867.90

Finding the Fourth Proportional to 3,500.40, 5,250.54 and 867.90

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Solution

The fourth proportional to 3,500.40, 5,250.54 and 867.90 is: 1,301.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.40 : 5,250.54 = 867.90 : x
  2. Step 2: Convert to fraction form
    3,500.40/5,250.54 = 867.90/x
  3. Step 3: Cross multiply
    3,500.40x = 5,250.54 × 867.90
  4. Step 4: Simplify right side
    3,500.40x = 4,556,943.67
  5. Step 5: Solve for x
    x = 4,556,943.67/3,500.40
  6. Step 6: Final answer
    x = 1,301.84

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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.