Home / 8,775.22-13,161.40-2,931.82

Finding the Fourth Proportional to 8,775.22, 13,161.40 and 2,931.82

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Solution

The fourth proportional to 8,775.22, 13,161.40 and 2,931.82 is: 4,397.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.22 : 13,161.40 = 2,931.82 : x
  2. Step 2: Convert to fraction form
    8,775.22/13,161.40 = 2,931.82/x
  3. Step 3: Cross multiply
    8,775.22x = 13,161.40 × 2,931.82
  4. Step 4: Simplify right side
    8,775.22x = 38,586,855.75
  5. Step 5: Solve for x
    x = 38,586,855.75/8,775.22
  6. Step 6: Final answer
    x = 4,397.25

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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.