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Finding the Fourth Proportional to 2,871.30, 4,308.03 and 1,955.50

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Solution

The fourth proportional to 2,871.30, 4,308.03 and 1,955.50 is: 2,933.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.30 : 4,308.03 = 1,955.50 : x
  2. Step 2: Convert to fraction form
    2,871.30/4,308.03 = 1,955.50/x
  3. Step 3: Cross multiply
    2,871.30x = 4,308.03 × 1,955.50
  4. Step 4: Simplify right side
    2,871.30x = 8,424,334.56
  5. Step 5: Solve for x
    x = 8,424,334.56/2,871.30
  6. Step 6: Final answer
    x = 2,933.98

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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.