Home / 2,178.75-3,264.88-1,864.54

Finding the Fourth Proportional to 2,178.75, 3,264.88 and 1,864.54

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Solution

The fourth proportional to 2,178.75, 3,264.88 and 1,864.54 is: 2,794.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.75 : 3,264.88 = 1,864.54 : x
  2. Step 2: Convert to fraction form
    2,178.75/3,264.88 = 1,864.54/x
  3. Step 3: Cross multiply
    2,178.75x = 3,264.88 × 1,864.54
  4. Step 4: Simplify right side
    2,178.75x = 6,087,499.36
  5. Step 5: Solve for x
    x = 6,087,499.36/2,178.75
  6. Step 6: Final answer
    x = 2,794.03

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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.