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Finding the Fourth Proportional to 3,897.58, 5,849.33 and 2,860.21

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Solution

The fourth proportional to 3,897.58, 5,849.33 and 2,860.21 is: 4,292.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897.58 : 5,849.33 = 2,860.21 : x
  2. Step 2: Convert to fraction form
    3,897.58/5,849.33 = 2,860.21/x
  3. Step 3: Cross multiply
    3,897.58x = 5,849.33 × 2,860.21
  4. Step 4: Simplify right side
    3,897.58x = 16,730,312.16
  5. Step 5: Solve for x
    x = 16,730,312.16/3,897.58
  6. Step 6: Final answer
    x = 4,292.49

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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.