Home / 5,088.31-7,628.87-1,965.68

Finding the Fourth Proportional to 5,088.31, 7,628.87 and 1,965.68

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Solution

The fourth proportional to 5,088.31, 7,628.87 and 1,965.68 is: 2,947.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,088.31 : 7,628.87 = 1,965.68 : x
  2. Step 2: Convert to fraction form
    5,088.31/7,628.87 = 1,965.68/x
  3. Step 3: Cross multiply
    5,088.31x = 7,628.87 × 1,965.68
  4. Step 4: Simplify right side
    5,088.31x = 14,995,920.52
  5. Step 5: Solve for x
    x = 14,995,920.52/5,088.31
  6. Step 6: Final answer
    x = 2,947.13

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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.