Home / 5,119.49-7,678.92-1,832.42

Finding the Fourth Proportional to 5,119.49, 7,678.92 and 1,832.42

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Solution

The fourth proportional to 5,119.49, 7,678.92 and 1,832.42 is: 2,748.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.49 : 7,678.92 = 1,832.42 : x
  2. Step 2: Convert to fraction form
    5,119.49/7,678.92 = 1,832.42/x
  3. Step 3: Cross multiply
    5,119.49x = 7,678.92 × 1,832.42
  4. Step 4: Simplify right side
    5,119.49x = 14,071,006.59
  5. Step 5: Solve for x
    x = 14,071,006.59/5,119.49
  6. Step 6: Final answer
    x = 2,748.52

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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.