Home / 5,279.66-7,919.50-1,769.02

Finding the Fourth Proportional to 5,279.66, 7,919.50 and 1,769.02

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Solution

The fourth proportional to 5,279.66, 7,919.50 and 1,769.02 is: 2,653.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.66 : 7,919.50 = 1,769.02 : x
  2. Step 2: Convert to fraction form
    5,279.66/7,919.50 = 1,769.02/x
  3. Step 3: Cross multiply
    5,279.66x = 7,919.50 × 1,769.02
  4. Step 4: Simplify right side
    5,279.66x = 14,009,753.89
  5. Step 5: Solve for x
    x = 14,009,753.89/5,279.66
  6. Step 6: Final answer
    x = 2,653.53

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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.