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Finding the Fourth Proportional to 1,119.68, 1,544.16 and 944.72

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Solution

The fourth proportional to 1,119.68, 1,544.16 and 944.72 is: 1,302.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119.68 : 1,544.16 = 944.72 : x
  2. Step 2: Convert to fraction form
    1,119.68/1,544.16 = 944.72/x
  3. Step 3: Cross multiply
    1,119.68x = 1,544.16 × 944.72
  4. Step 4: Simplify right side
    1,119.68x = 1,458,798.84
  5. Step 5: Solve for x
    x = 1,458,798.84/1,119.68
  6. Step 6: Final answer
    x = 1,302.87

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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.