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Finding the Fourth Proportional to 1,969.47, 2,955.65 and 944.19

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Solution

The fourth proportional to 1,969.47, 2,955.65 and 944.19 is: 1,416.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.47 : 2,955.65 = 944.19 : x
  2. Step 2: Convert to fraction form
    1,969.47/2,955.65 = 944.19/x
  3. Step 3: Cross multiply
    1,969.47x = 2,955.65 × 944.19
  4. Step 4: Simplify right side
    1,969.47x = 2,790,690.45
  5. Step 5: Solve for x
    x = 2,790,690.45/1,969.47
  6. Step 6: Final answer
    x = 1,416.98

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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.