Home / 2,178.65-3,006.38-1,234.46

Finding the Fourth Proportional to 2,178.65, 3,006.38 and 1,234.46

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Solution

The fourth proportional to 2,178.65, 3,006.38 and 1,234.46 is: 1,703.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.65 : 3,006.38 = 1,234.46 : x
  2. Step 2: Convert to fraction form
    2,178.65/3,006.38 = 1,234.46/x
  3. Step 3: Cross multiply
    2,178.65x = 3,006.38 × 1,234.46
  4. Step 4: Simplify right side
    2,178.65x = 3,711,266.46
  5. Step 5: Solve for x
    x = 3,711,266.46/2,178.65
  6. Step 6: Final answer
    x = 1,703.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.