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Finding the Fourth Proportional to 1,563.42, 2,344.38 and 575.55

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Solution

The fourth proportional to 1,563.42, 2,344.38 and 575.55 is: 863.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.42 : 2,344.38 = 575.55 : x
  2. Step 2: Convert to fraction form
    1,563.42/2,344.38 = 575.55/x
  3. Step 3: Cross multiply
    1,563.42x = 2,344.38 × 575.55
  4. Step 4: Simplify right side
    1,563.42x = 1,349,307.91
  5. Step 5: Solve for x
    x = 1,349,307.91/1,563.42
  6. Step 6: Final answer
    x = 863.05

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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.