Home / 3,749.90-5,174.87-2,071.35

Finding the Fourth Proportional to 3,749.90, 5,174.87 and 2,071.35

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Solution

The fourth proportional to 3,749.90, 5,174.87 and 2,071.35 is: 2,858.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.90 : 5,174.87 = 2,071.35 : x
  2. Step 2: Convert to fraction form
    3,749.90/5,174.87 = 2,071.35/x
  3. Step 3: Cross multiply
    3,749.90x = 5,174.87 × 2,071.35
  4. Step 4: Simplify right side
    3,749.90x = 10,718,956.62
  5. Step 5: Solve for x
    x = 10,718,956.62/3,749.90
  6. Step 6: Final answer
    x = 2,858.47

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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.