Home / 1,624.30-2,433.57-1,108.78

Finding the Fourth Proportional to 1,624.30, 2,433.57 and 1,108.78

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Solution

The fourth proportional to 1,624.30, 2,433.57 and 1,108.78 is: 1,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.30 : 2,433.57 = 1,108.78 : x
  2. Step 2: Convert to fraction form
    1,624.30/2,433.57 = 1,108.78/x
  3. Step 3: Cross multiply
    1,624.30x = 2,433.57 × 1,108.78
  4. Step 4: Simplify right side
    1,624.30x = 2,698,293.74
  5. Step 5: Solve for x
    x = 2,698,293.74/1,624.30
  6. Step 6: Final answer
    x = 1,661.20

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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.