Home / 1,215.26-1,822.58-522.10

Finding the Fourth Proportional to 1,215.26, 1,822.58 and 522.10

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Solution

The fourth proportional to 1,215.26, 1,822.58 and 522.10 is: 783.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215.26 : 1,822.58 = 522.10 : x
  2. Step 2: Convert to fraction form
    1,215.26/1,822.58 = 522.10/x
  3. Step 3: Cross multiply
    1,215.26x = 1,822.58 × 522.10
  4. Step 4: Simplify right side
    1,215.26x = 951,561.85
  5. Step 5: Solve for x
    x = 951,561.85/1,215.26
  6. Step 6: Final answer
    x = 783.01

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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.