Home / 5,615.66-8,424.33-1,815.03

Finding the Fourth Proportional to 5,615.66, 8,424.33 and 1,815.03

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Solution

The fourth proportional to 5,615.66, 8,424.33 and 1,815.03 is: 2,722.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.66 : 8,424.33 = 1,815.03 : x
  2. Step 2: Convert to fraction form
    5,615.66/8,424.33 = 1,815.03/x
  3. Step 3: Cross multiply
    5,615.66x = 8,424.33 × 1,815.03
  4. Step 4: Simplify right side
    5,615.66x = 15,290,411.68
  5. Step 5: Solve for x
    x = 15,290,411.68/5,615.66
  6. Step 6: Final answer
    x = 2,722.82

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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.