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Finding the Fourth Proportional to 1,944.25, 2,915.02 and 1,124.12

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Solution

The fourth proportional to 1,944.25, 2,915.02 and 1,124.12 is: 1,685.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.25 : 2,915.02 = 1,124.12 : x
  2. Step 2: Convert to fraction form
    1,944.25/2,915.02 = 1,124.12/x
  3. Step 3: Cross multiply
    1,944.25x = 2,915.02 × 1,124.12
  4. Step 4: Simplify right side
    1,944.25x = 3,276,832.28
  5. Step 5: Solve for x
    x = 3,276,832.28/1,944.25
  6. Step 6: Final answer
    x = 1,685.40

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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.