Home / 5,110.87-7,664.13-1,947.77

Finding the Fourth Proportional to 5,110.87, 7,664.13 and 1,947.77

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Solution

The fourth proportional to 5,110.87, 7,664.13 and 1,947.77 is: 2,920.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.87 : 7,664.13 = 1,947.77 : x
  2. Step 2: Convert to fraction form
    5,110.87/7,664.13 = 1,947.77/x
  3. Step 3: Cross multiply
    5,110.87x = 7,664.13 × 1,947.77
  4. Step 4: Simplify right side
    5,110.87x = 14,927,962.49
  5. Step 5: Solve for x
    x = 14,927,962.49/5,110.87
  6. Step 6: Final answer
    x = 2,920.83

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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.