Home / 5,679.05-8,518.91-1,519.16

Finding the Fourth Proportional to 5,679.05, 8,518.91 and 1,519.16

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Solution

The fourth proportional to 5,679.05, 8,518.91 and 1,519.16 is: 2,278.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.05 : 8,518.91 = 1,519.16 : x
  2. Step 2: Convert to fraction form
    5,679.05/8,518.91 = 1,519.16/x
  3. Step 3: Cross multiply
    5,679.05x = 8,518.91 × 1,519.16
  4. Step 4: Simplify right side
    5,679.05x = 12,941,537.13
  5. Step 5: Solve for x
    x = 12,941,537.13/5,679.05
  6. Step 6: Final answer
    x = 2,278.82

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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.