Home / 1,932.90-2,899.32-1,818.78

Finding the Fourth Proportional to 1,932.90, 2,899.32 and 1,818.78

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Solution

The fourth proportional to 1,932.90, 2,899.32 and 1,818.78 is: 2,728.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932.90 : 2,899.32 = 1,818.78 : x
  2. Step 2: Convert to fraction form
    1,932.90/2,899.32 = 1,818.78/x
  3. Step 3: Cross multiply
    1,932.90x = 2,899.32 × 1,818.78
  4. Step 4: Simplify right side
    1,932.90x = 5,273,225.23
  5. Step 5: Solve for x
    x = 5,273,225.23/1,932.90
  6. Step 6: Final answer
    x = 2,728.14

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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.