Home / 3,749.21-5,173.87-2,070.69

Finding the Fourth Proportional to 3,749.21, 5,173.87 and 2,070.69

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Solution

The fourth proportional to 3,749.21, 5,173.87 and 2,070.69 is: 2,857.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.21 : 5,173.87 = 2,070.69 : x
  2. Step 2: Convert to fraction form
    3,749.21/5,173.87 = 2,070.69/x
  3. Step 3: Cross multiply
    3,749.21x = 5,173.87 × 2,070.69
  4. Step 4: Simplify right side
    3,749.21x = 10,713,444.65
  5. Step 5: Solve for x
    x = 10,713,444.65/3,749.21
  6. Step 6: Final answer
    x = 2,857.52

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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.