Home / 2,844.12-4,266.80-869.91

Finding the Fourth Proportional to 2,844.12, 4,266.80 and 869.91

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Solution

The fourth proportional to 2,844.12, 4,266.80 and 869.91 is: 1,305.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,844.12 : 4,266.80 = 869.91 : x
  2. Step 2: Convert to fraction form
    2,844.12/4,266.80 = 869.91/x
  3. Step 3: Cross multiply
    2,844.12x = 4,266.80 × 869.91
  4. Step 4: Simplify right side
    2,844.12x = 3,711,727.64
  5. Step 5: Solve for x
    x = 3,711,727.64/2,844.12
  6. Step 6: Final answer
    x = 1,305.06

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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.