Home / 1,680.80-2,520.21-584.72

Finding the Fourth Proportional to 1,680.80, 2,520.21 and 584.72

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Solution

The fourth proportional to 1,680.80, 2,520.21 and 584.72 is: 876.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.80 : 2,520.21 = 584.72 : x
  2. Step 2: Convert to fraction form
    1,680.80/2,520.21 = 584.72/x
  3. Step 3: Cross multiply
    1,680.80x = 2,520.21 × 584.72
  4. Step 4: Simplify right side
    1,680.80x = 1,473,616.23
  5. Step 5: Solve for x
    x = 1,473,616.23/1,680.80
  6. Step 6: Final answer
    x = 876.73

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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.