Home / 1,947.98-2,688.21-1,063.79

Finding the Fourth Proportional to 1,947.98, 2,688.21 and 1,063.79

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Solution

The fourth proportional to 1,947.98, 2,688.21 and 1,063.79 is: 1,468.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.98 : 2,688.21 = 1,063.79 : x
  2. Step 2: Convert to fraction form
    1,947.98/2,688.21 = 1,063.79/x
  3. Step 3: Cross multiply
    1,947.98x = 2,688.21 × 1,063.79
  4. Step 4: Simplify right side
    1,947.98x = 2,859,677.47
  5. Step 5: Solve for x
    x = 2,859,677.47/1,947.98
  6. Step 6: Final answer
    x = 1,468.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.