Home / 1,343.14-2,013.69-881.03

Finding the Fourth Proportional to 1,343.14, 2,013.69 and 881.03

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Solution

The fourth proportional to 1,343.14, 2,013.69 and 881.03 is: 1,320.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.14 : 2,013.69 = 881.03 : x
  2. Step 2: Convert to fraction form
    1,343.14/2,013.69 = 881.03/x
  3. Step 3: Cross multiply
    1,343.14x = 2,013.69 × 881.03
  4. Step 4: Simplify right side
    1,343.14x = 1,774,119.10
  5. Step 5: Solve for x
    x = 1,774,119.10/1,343.14
  6. Step 6: Final answer
    x = 1,320.88

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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.