Home / 1,343.28-2,015.48-522.13

Finding the Fourth Proportional to 1,343.28, 2,015.48 and 522.13

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Solution

The fourth proportional to 1,343.28, 2,015.48 and 522.13 is: 783.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.28 : 2,015.48 = 522.13 : x
  2. Step 2: Convert to fraction form
    1,343.28/2,015.48 = 522.13/x
  3. Step 3: Cross multiply
    1,343.28x = 2,015.48 × 522.13
  4. Step 4: Simplify right side
    1,343.28x = 1,052,342.57
  5. Step 5: Solve for x
    x = 1,052,342.57/1,343.28
  6. Step 6: Final answer
    x = 783.41

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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.