Home / 5,679.47-8,518.23-1,519.94

Finding the Fourth Proportional to 5,679.47, 8,518.23 and 1,519.94

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Solution

The fourth proportional to 5,679.47, 8,518.23 and 1,519.94 is: 2,279.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.47 : 8,518.23 = 1,519.94 : x
  2. Step 2: Convert to fraction form
    5,679.47/8,518.23 = 1,519.94/x
  3. Step 3: Cross multiply
    5,679.47x = 8,518.23 × 1,519.94
  4. Step 4: Simplify right side
    5,679.47x = 12,947,198.51
  5. Step 5: Solve for x
    x = 12,947,198.51/5,679.47
  6. Step 6: Final answer
    x = 2,279.65

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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.