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Finding the Fourth Proportional to 1,944.33, 2,916.45 and 483.48

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Solution

The fourth proportional to 1,944.33, 2,916.45 and 483.48 is: 725.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.33 : 2,916.45 = 483.48 : x
  2. Step 2: Convert to fraction form
    1,944.33/2,916.45 = 483.48/x
  3. Step 3: Cross multiply
    1,944.33x = 2,916.45 × 483.48
  4. Step 4: Simplify right side
    1,944.33x = 1,410,045.25
  5. Step 5: Solve for x
    x = 1,410,045.25/1,944.33
  6. Step 6: Final answer
    x = 725.21

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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.