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Finding the Fourth Proportional to 5,359, 8,041.74 and 2,281

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Solution

The fourth proportional to 5,359, 8,041.74 and 2,281 is: 3,422.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359 : 8,041.74 = 2,281 : x
  2. Step 2: Convert to fraction form
    5,359/8,041.74 = 2,281/x
  3. Step 3: Cross multiply
    5,359x = 8,041.74 × 2,281
  4. Step 4: Simplify right side
    5,359x = 18,343,208.94
  5. Step 5: Solve for x
    x = 18,343,208.94/5,359
  6. Step 6: Final answer
    x = 3,422.88

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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.