Home / 5,298.54-7,947.69-3,121.08

Finding the Fourth Proportional to 5,298.54, 7,947.69 and 3,121.08

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Solution

The fourth proportional to 5,298.54, 7,947.69 and 3,121.08 is: 4,681.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,298.54 : 7,947.69 = 3,121.08 : x
  2. Step 2: Convert to fraction form
    5,298.54/7,947.69 = 3,121.08/x
  3. Step 3: Cross multiply
    5,298.54x = 7,947.69 × 3,121.08
  4. Step 4: Simplify right side
    5,298.54x = 24,805,376.31
  5. Step 5: Solve for x
    x = 24,805,376.31/5,298.54
  6. Step 6: Final answer
    x = 4,681.55

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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.