Home / 3,749.77-5,179.28-2,809.77

Finding the Fourth Proportional to 3,749.77, 5,179.28 and 2,809.77

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Solution

The fourth proportional to 3,749.77, 5,179.28 and 2,809.77 is: 3,880.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.77 : 5,179.28 = 2,809.77 : x
  2. Step 2: Convert to fraction form
    3,749.77/5,179.28 = 2,809.77/x
  3. Step 3: Cross multiply
    3,749.77x = 5,179.28 × 2,809.77
  4. Step 4: Simplify right side
    3,749.77x = 14,552,585.57
  5. Step 5: Solve for x
    x = 14,552,585.57/3,749.77
  6. Step 6: Final answer
    x = 3,880.93

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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.