Home / 5,298.87-7,947.95-2,178.07

Finding the Fourth Proportional to 5,298.87, 7,947.95 and 2,178.07

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Solution

The fourth proportional to 5,298.87, 7,947.95 and 2,178.07 is: 3,266.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,298.87 : 7,947.95 = 2,178.07 : x
  2. Step 2: Convert to fraction form
    5,298.87/7,947.95 = 2,178.07/x
  3. Step 3: Cross multiply
    5,298.87x = 7,947.95 × 2,178.07
  4. Step 4: Simplify right side
    5,298.87x = 17,311,191.46
  5. Step 5: Solve for x
    x = 17,311,191.46/5,298.87
  6. Step 6: Final answer
    x = 3,266.96

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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.