Home / 3,747.40-5,171.46-2,068.81

Finding the Fourth Proportional to 3,747.40, 5,171.46 and 2,068.81

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Solution

The fourth proportional to 3,747.40, 5,171.46 and 2,068.81 is: 2,854.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.40 : 5,171.46 = 2,068.81 : x
  2. Step 2: Convert to fraction form
    3,747.40/5,171.46 = 2,068.81/x
  3. Step 3: Cross multiply
    3,747.40x = 5,171.46 × 2,068.81
  4. Step 4: Simplify right side
    3,747.40x = 10,698,768.16
  5. Step 5: Solve for x
    x = 10,698,768.16/3,747.40
  6. Step 6: Final answer
    x = 2,854.98

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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.