Home / 3,710.20-5,119.09-2,385.71

Finding the Fourth Proportional to 3,710.20, 5,119.09 and 2,385.71

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Solution

The fourth proportional to 3,710.20, 5,119.09 and 2,385.71 is: 3,291.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.20 : 5,119.09 = 2,385.71 : x
  2. Step 2: Convert to fraction form
    3,710.20/5,119.09 = 2,385.71/x
  3. Step 3: Cross multiply
    3,710.20x = 5,119.09 × 2,385.71
  4. Step 4: Simplify right side
    3,710.20x = 12,212,664.20
  5. Step 5: Solve for x
    x = 12,212,664.20/3,710.20
  6. Step 6: Final answer
    x = 3,291.65

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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.