Home / 1,344.12-2,011.50-823.92

Finding the Fourth Proportional to 1,344.12, 2,011.50 and 823.92

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Solution

The fourth proportional to 1,344.12, 2,011.50 and 823.92 is: 1,233.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344.12 : 2,011.50 = 823.92 : x
  2. Step 2: Convert to fraction form
    1,344.12/2,011.50 = 823.92/x
  3. Step 3: Cross multiply
    1,344.12x = 2,011.50 × 823.92
  4. Step 4: Simplify right side
    1,344.12x = 1,657,315.08
  5. Step 5: Solve for x
    x = 1,657,315.08/1,344.12
  6. Step 6: Final answer
    x = 1,233.01

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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.