Home / 1,519.56-2,278.15-697.23

Finding the Fourth Proportional to 1,519.56, 2,278.15 and 697.23

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Solution

The fourth proportional to 1,519.56, 2,278.15 and 697.23 is: 1,045.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.56 : 2,278.15 = 697.23 : x
  2. Step 2: Convert to fraction form
    1,519.56/2,278.15 = 697.23/x
  3. Step 3: Cross multiply
    1,519.56x = 2,278.15 × 697.23
  4. Step 4: Simplify right side
    1,519.56x = 1,588,392.78
  5. Step 5: Solve for x
    x = 1,588,392.78/1,519.56
  6. Step 6: Final answer
    x = 1,045.30

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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.