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Finding the Fourth Proportional to 2,959.61, 4,439.37 and 881.02

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Solution

The fourth proportional to 2,959.61, 4,439.37 and 881.02 is: 1,321.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959.61 : 4,439.37 = 881.02 : x
  2. Step 2: Convert to fraction form
    2,959.61/4,439.37 = 881.02/x
  3. Step 3: Cross multiply
    2,959.61x = 4,439.37 × 881.02
  4. Step 4: Simplify right side
    2,959.61x = 3,911,173.76
  5. Step 5: Solve for x
    x = 3,911,173.76/2,959.61
  6. Step 6: Final answer
    x = 1,321.52

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1.5x scale

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.