Home / 1,519.04-2,278.12-423.15

Finding the Fourth Proportional to 1,519.04, 2,278.12 and 423.15

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Solution

The fourth proportional to 1,519.04, 2,278.12 and 423.15 is: 634.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.04 : 2,278.12 = 423.15 : x
  2. Step 2: Convert to fraction form
    1,519.04/2,278.12 = 423.15/x
  3. Step 3: Cross multiply
    1,519.04x = 2,278.12 × 423.15
  4. Step 4: Simplify right side
    1,519.04x = 963,986.48
  5. Step 5: Solve for x
    x = 963,986.48/1,519.04
  6. Step 6: Final answer
    x = 634.60

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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.