Home / 5,412.20-8,118.81-1,516.59

Finding the Fourth Proportional to 5,412.20, 8,118.81 and 1,516.59

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Solution

The fourth proportional to 5,412.20, 8,118.81 and 1,516.59 is: 2,275.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.20 : 8,118.81 = 1,516.59 : x
  2. Step 2: Convert to fraction form
    5,412.20/8,118.81 = 1,516.59/x
  3. Step 3: Cross multiply
    5,412.20x = 8,118.81 × 1,516.59
  4. Step 4: Simplify right side
    5,412.20x = 12,312,906.06
  5. Step 5: Solve for x
    x = 12,312,906.06/5,412.20
  6. Step 6: Final answer
    x = 2,275.03

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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.