Home / 1,216.29-1,824.51-522.81

Finding the Fourth Proportional to 1,216.29, 1,824.51 and 522.81

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Solution

The fourth proportional to 1,216.29, 1,824.51 and 522.81 is: 784.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216.29 : 1,824.51 = 522.81 : x
  2. Step 2: Convert to fraction form
    1,216.29/1,824.51 = 522.81/x
  3. Step 3: Cross multiply
    1,216.29x = 1,824.51 × 522.81
  4. Step 4: Simplify right side
    1,216.29x = 953,872.07
  5. Step 5: Solve for x
    x = 953,872.07/1,216.29
  6. Step 6: Final answer
    x = 784.25

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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.