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Finding the Fourth Proportional to 3,754.40, 5,180.88 and 2,098.40

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Solution

The fourth proportional to 3,754.40, 5,180.88 and 2,098.40 is: 2,895.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,754.40 : 5,180.88 = 2,098.40 : x
  2. Step 2: Convert to fraction form
    3,754.40/5,180.88 = 2,098.40/x
  3. Step 3: Cross multiply
    3,754.40x = 5,180.88 × 2,098.40
  4. Step 4: Simplify right side
    3,754.40x = 10,871,558.59
  5. Step 5: Solve for x
    x = 10,871,558.59/3,754.40
  6. Step 6: Final answer
    x = 2,895.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.