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Finding the Fourth Proportional to 6,603.90, 9,910.15 and 2,859.34

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Solution

The fourth proportional to 6,603.90, 9,910.15 and 2,859.34 is: 4,290.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603.90 : 9,910.15 = 2,859.34 : x
  2. Step 2: Convert to fraction form
    6,603.90/9,910.15 = 2,859.34/x
  3. Step 3: Cross multiply
    6,603.90x = 9,910.15 × 2,859.34
  4. Step 4: Simplify right side
    6,603.90x = 28,336,445.29
  5. Step 5: Solve for x
    x = 28,336,445.29/6,603.90
  6. Step 6: Final answer
    x = 4,290.87

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1.5x scale

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.