Home / 2,766.47-4,146.05-1,122.11

Finding the Fourth Proportional to 2,766.47, 4,146.05 and 1,122.11

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Solution

The fourth proportional to 2,766.47, 4,146.05 and 1,122.11 is: 1,681.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.47 : 4,146.05 = 1,122.11 : x
  2. Step 2: Convert to fraction form
    2,766.47/4,146.05 = 1,122.11/x
  3. Step 3: Cross multiply
    2,766.47x = 4,146.05 × 1,122.11
  4. Step 4: Simplify right side
    2,766.47x = 4,652,297.82
  5. Step 5: Solve for x
    x = 4,652,297.82/2,766.47
  6. Step 6: Final answer
    x = 1,681.68

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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.