Home / 3,539.28-5,309.01-1,230.78

Finding the Fourth Proportional to 3,539.28, 5,309.01 and 1,230.78

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Solution

The fourth proportional to 3,539.28, 5,309.01 and 1,230.78 is: 1,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.28 : 5,309.01 = 1,230.78 : x
  2. Step 2: Convert to fraction form
    3,539.28/5,309.01 = 1,230.78/x
  3. Step 3: Cross multiply
    3,539.28x = 5,309.01 × 1,230.78
  4. Step 4: Simplify right side
    3,539.28x = 6,534,223.33
  5. Step 5: Solve for x
    x = 6,534,223.33/3,539.28
  6. Step 6: Final answer
    x = 1,846.20

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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.