Home / 5,364.80-8,036.40-2,769.20

Finding the Fourth Proportional to 5,364.80, 8,036.40 and 2,769.20

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Solution

The fourth proportional to 5,364.80, 8,036.40 and 2,769.20 is: 4,148.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,364.80 : 8,036.40 = 2,769.20 : x
  2. Step 2: Convert to fraction form
    5,364.80/8,036.40 = 2,769.20/x
  3. Step 3: Cross multiply
    5,364.80x = 8,036.40 × 2,769.20
  4. Step 4: Simplify right side
    5,364.80x = 22,254,398.88
  5. Step 5: Solve for x
    x = 22,254,398.88/5,364.80
  6. Step 6: Final answer
    x = 4,148.23

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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.