Home / 4,545.90-6,821.18-1,879.47

Finding the Fourth Proportional to 4,545.90, 6,821.18 and 1,879.47

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Solution

The fourth proportional to 4,545.90, 6,821.18 and 1,879.47 is: 2,820.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,545.90 : 6,821.18 = 1,879.47 : x
  2. Step 2: Convert to fraction form
    4,545.90/6,821.18 = 1,879.47/x
  3. Step 3: Cross multiply
    4,545.90x = 6,821.18 × 1,879.47
  4. Step 4: Simplify right side
    4,545.90x = 12,820,193.78
  5. Step 5: Solve for x
    x = 12,820,193.78/4,545.90
  6. Step 6: Final answer
    x = 2,820.17

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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.