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Finding the Fourth Proportional to 3,247.29, 4,871.21 and 907.27

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Solution

The fourth proportional to 3,247.29, 4,871.21 and 907.27 is: 1,360.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.29 : 4,871.21 = 907.27 : x
  2. Step 2: Convert to fraction form
    3,247.29/4,871.21 = 907.27/x
  3. Step 3: Cross multiply
    3,247.29x = 4,871.21 × 907.27
  4. Step 4: Simplify right side
    3,247.29x = 4,419,485.98
  5. Step 5: Solve for x
    x = 4,419,485.98/3,247.29
  6. Step 6: Final answer
    x = 1,360.98

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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.