Home / 2,145.50-2,963.22-1,445.66

Finding the Fourth Proportional to 2,145.50, 2,963.22 and 1,445.66

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Solution

The fourth proportional to 2,145.50, 2,963.22 and 1,445.66 is: 1,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.50 : 2,963.22 = 1,445.66 : x
  2. Step 2: Convert to fraction form
    2,145.50/2,963.22 = 1,445.66/x
  3. Step 3: Cross multiply
    2,145.50x = 2,963.22 × 1,445.66
  4. Step 4: Simplify right side
    2,145.50x = 4,283,808.63
  5. Step 5: Solve for x
    x = 4,283,808.63/2,145.50
  6. Step 6: Final answer
    x = 1,996.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.