Home / 3,749.60-5,174.32-2,070.98

Finding the Fourth Proportional to 3,749.60, 5,174.32 and 2,070.98

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Solution

The fourth proportional to 3,749.60, 5,174.32 and 2,070.98 is: 2,857.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.60 : 5,174.32 = 2,070.98 : x
  2. Step 2: Convert to fraction form
    3,749.60/5,174.32 = 2,070.98/x
  3. Step 3: Cross multiply
    3,749.60x = 5,174.32 × 2,070.98
  4. Step 4: Simplify right side
    3,749.60x = 10,715,913.23
  5. Step 5: Solve for x
    x = 10,715,913.23/3,749.60
  6. Step 6: Final answer
    x = 2,857.88

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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.