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Finding the Fourth Proportional to 3,887.47, 5,813.47 and 2,900.98

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Solution

The fourth proportional to 3,887.47, 5,813.47 and 2,900.98 is: 4,338.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.47 : 5,813.47 = 2,900.98 : x
  2. Step 2: Convert to fraction form
    3,887.47/5,813.47 = 2,900.98/x
  3. Step 3: Cross multiply
    3,887.47x = 5,813.47 × 2,900.98
  4. Step 4: Simplify right side
    3,887.47x = 16,864,760.20
  5. Step 5: Solve for x
    x = 16,864,760.20/3,887.47
  6. Step 6: Final answer
    x = 4,338.24

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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.