Home / 2,456.43-3,678.87-1,283.65

Finding the Fourth Proportional to 2,456.43, 3,678.87 and 1,283.65

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Solution

The fourth proportional to 2,456.43, 3,678.87 and 1,283.65 is: 1,922.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.43 : 3,678.87 = 1,283.65 : x
  2. Step 2: Convert to fraction form
    2,456.43/3,678.87 = 1,283.65/x
  3. Step 3: Cross multiply
    2,456.43x = 3,678.87 × 1,283.65
  4. Step 4: Simplify right side
    2,456.43x = 4,722,369.87
  5. Step 5: Solve for x
    x = 4,722,369.87/2,456.43
  6. Step 6: Final answer
    x = 1,922.46

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1.5x scale

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.