Home / 5,009.80-7,515.20-1,722.46

Finding the Fourth Proportional to 5,009.80, 7,515.20 and 1,722.46

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Solution

The fourth proportional to 5,009.80, 7,515.20 and 1,722.46 is: 2,583.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,009.80 : 7,515.20 = 1,722.46 : x
  2. Step 2: Convert to fraction form
    5,009.80/7,515.20 = 1,722.46/x
  3. Step 3: Cross multiply
    5,009.80x = 7,515.20 × 1,722.46
  4. Step 4: Simplify right side
    5,009.80x = 12,944,631.39
  5. Step 5: Solve for x
    x = 12,944,631.39/5,009.80
  6. Step 6: Final answer
    x = 2,583.86

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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.