Home / 3,500.28-5,250.36-903.20

Finding the Fourth Proportional to 3,500.28, 5,250.36 and 903.20

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Solution

The fourth proportional to 3,500.28, 5,250.36 and 903.20 is: 1,354.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.28 : 5,250.36 = 903.20 : x
  2. Step 2: Convert to fraction form
    3,500.28/5,250.36 = 903.20/x
  3. Step 3: Cross multiply
    3,500.28x = 5,250.36 × 903.20
  4. Step 4: Simplify right side
    3,500.28x = 4,742,125.15
  5. Step 5: Solve for x
    x = 4,742,125.15/3,500.28
  6. Step 6: Final answer
    x = 1,354.78

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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.