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Finding the Fourth Proportional to 3,575.79, 5,364.78 and 1,603.08

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Solution

The fourth proportional to 3,575.79, 5,364.78 and 1,603.08 is: 2,405.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,575.79 : 5,364.78 = 1,603.08 : x
  2. Step 2: Convert to fraction form
    3,575.79/5,364.78 = 1,603.08/x
  3. Step 3: Cross multiply
    3,575.79x = 5,364.78 × 1,603.08
  4. Step 4: Simplify right side
    3,575.79x = 8,600,144.70
  5. Step 5: Solve for x
    x = 8,600,144.70/3,575.79
  6. Step 6: Final answer
    x = 2,405.11

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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.