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Finding the Fourth Proportional to 3,371.88, 4,653.80 and 1,956.47

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Solution

The fourth proportional to 3,371.88, 4,653.80 and 1,956.47 is: 2,700.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,371.88 : 4,653.80 = 1,956.47 : x
  2. Step 2: Convert to fraction form
    3,371.88/4,653.80 = 1,956.47/x
  3. Step 3: Cross multiply
    3,371.88x = 4,653.80 × 1,956.47
  4. Step 4: Simplify right side
    3,371.88x = 9,105,031.55
  5. Step 5: Solve for x
    x = 9,105,031.55/3,371.88
  6. Step 6: Final answer
    x = 2,700.28

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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.