Home / 2,178.95-3,269.33-1,203.91

Finding the Fourth Proportional to 2,178.95, 3,269.33 and 1,203.91

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Solution

The fourth proportional to 2,178.95, 3,269.33 and 1,203.91 is: 1,806.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.95 : 3,269.33 = 1,203.91 : x
  2. Step 2: Convert to fraction form
    2,178.95/3,269.33 = 1,203.91/x
  3. Step 3: Cross multiply
    2,178.95x = 3,269.33 × 1,203.91
  4. Step 4: Simplify right side
    2,178.95x = 3,935,964.89
  5. Step 5: Solve for x
    x = 3,935,964.89/2,178.95
  6. Step 6: Final answer
    x = 1,806.36

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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.