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Finding the Fourth Proportional to 1,883.01, 2,824.01 and 787.15

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Solution

The fourth proportional to 1,883.01, 2,824.01 and 787.15 is: 1,180.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,883.01 : 2,824.01 = 787.15 : x
  2. Step 2: Convert to fraction form
    1,883.01/2,824.01 = 787.15/x
  3. Step 3: Cross multiply
    1,883.01x = 2,824.01 × 787.15
  4. Step 4: Simplify right side
    1,883.01x = 2,222,919.47
  5. Step 5: Solve for x
    x = 2,222,919.47/1,883.01
  6. Step 6: Final answer
    x = 1,180.51

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1.5x scale

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.