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Finding the Fourth Proportional to 3,304.64, 4,953.96 and 1,988.79

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Solution

The fourth proportional to 3,304.64, 4,953.96 and 1,988.79 is: 2,981.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,304.64 : 4,953.96 = 1,988.79 : x
  2. Step 2: Convert to fraction form
    3,304.64/4,953.96 = 1,988.79/x
  3. Step 3: Cross multiply
    3,304.64x = 4,953.96 × 1,988.79
  4. Step 4: Simplify right side
    3,304.64x = 9,852,386.11
  5. Step 5: Solve for x
    x = 9,852,386.11/3,304.64
  6. Step 6: Final answer
    x = 2,981.38

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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.