Home / 3,747.52-5,171.81-2,154.67

Finding the Fourth Proportional to 3,747.52, 5,171.81 and 2,154.67

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Solution

The fourth proportional to 3,747.52, 5,171.81 and 2,154.67 is: 2,973.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.52 : 5,171.81 = 2,154.67 : x
  2. Step 2: Convert to fraction form
    3,747.52/5,171.81 = 2,154.67/x
  3. Step 3: Cross multiply
    3,747.52x = 5,171.81 × 2,154.67
  4. Step 4: Simplify right side
    3,747.52x = 11,143,533.08
  5. Step 5: Solve for x
    x = 11,143,533.08/3,747.52
  6. Step 6: Final answer
    x = 2,973.58

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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.