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Finding the Fourth Proportional to 1,563.29, 2,343.31 and 522.51

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Solution

The fourth proportional to 1,563.29, 2,343.31 and 522.51 is: 783.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.29 : 2,343.31 = 522.51 : x
  2. Step 2: Convert to fraction form
    1,563.29/2,343.31 = 522.51/x
  3. Step 3: Cross multiply
    1,563.29x = 2,343.31 × 522.51
  4. Step 4: Simplify right side
    1,563.29x = 1,224,402.91
  5. Step 5: Solve for x
    x = 1,224,402.91/1,563.29
  6. Step 6: Final answer
    x = 783.22

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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.