Home / 2,829.10-4,243.65-881.30

Finding the Fourth Proportional to 2,829.10, 4,243.65 and 881.30

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Solution

The fourth proportional to 2,829.10, 4,243.65 and 881.30 is: 1,321.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.10 : 4,243.65 = 881.30 : x
  2. Step 2: Convert to fraction form
    2,829.10/4,243.65 = 881.30/x
  3. Step 3: Cross multiply
    2,829.10x = 4,243.65 × 881.30
  4. Step 4: Simplify right side
    2,829.10x = 3,739,928.75
  5. Step 5: Solve for x
    x = 3,739,928.75/2,829.10
  6. Step 6: Final answer
    x = 1,321.95

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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.