Home / 1,350.60-2,025.30-619.80

Finding the Fourth Proportional to 1,350.60, 2,025.30 and 619.80

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Solution

The fourth proportional to 1,350.60, 2,025.30 and 619.80 is: 929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350.60 : 2,025.30 = 619.80 : x
  2. Step 2: Convert to fraction form
    1,350.60/2,025.30 = 619.80/x
  3. Step 3: Cross multiply
    1,350.60x = 2,025.30 × 619.80
  4. Step 4: Simplify right side
    1,350.60x = 1,255,280.94
  5. Step 5: Solve for x
    x = 1,255,280.94/1,350.60
  6. Step 6: Final answer
    x = 929.42

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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.