Home / 3,812.77-5,255.48-2,691.93

Finding the Fourth Proportional to 3,812.77, 5,255.48 and 2,691.93

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Solution

The fourth proportional to 3,812.77, 5,255.48 and 2,691.93 is: 3,710.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.77 : 5,255.48 = 2,691.93 : x
  2. Step 2: Convert to fraction form
    3,812.77/5,255.48 = 2,691.93/x
  3. Step 3: Cross multiply
    3,812.77x = 5,255.48 × 2,691.93
  4. Step 4: Simplify right side
    3,812.77x = 14,147,410.71
  5. Step 5: Solve for x
    x = 14,147,410.71/3,812.77
  6. Step 6: Final answer
    x = 3,710.53

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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.