Home / 1,110.24-1,665.23-369.86

Finding the Fourth Proportional to 1,110.24, 1,665.23 and 369.86

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Solution

The fourth proportional to 1,110.24, 1,665.23 and 369.86 is: 554.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.24 : 1,665.23 = 369.86 : x
  2. Step 2: Convert to fraction form
    1,110.24/1,665.23 = 369.86/x
  3. Step 3: Cross multiply
    1,110.24x = 1,665.23 × 369.86
  4. Step 4: Simplify right side
    1,110.24x = 615,891.79
  5. Step 5: Solve for x
    x = 615,891.79/1,110.24
  6. Step 6: Final answer
    x = 554.74

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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.