Home / 3,400.76-5,119.07-2,899.64

Finding the Fourth Proportional to 3,400.76, 5,119.07 and 2,899.64

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Solution

The fourth proportional to 3,400.76, 5,119.07 and 2,899.64 is: 4,364.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.76 : 5,119.07 = 2,899.64 : x
  2. Step 2: Convert to fraction form
    3,400.76/5,119.07 = 2,899.64/x
  3. Step 3: Cross multiply
    3,400.76x = 5,119.07 × 2,899.64
  4. Step 4: Simplify right side
    3,400.76x = 14,843,460.13
  5. Step 5: Solve for x
    x = 14,843,460.13/3,400.76
  6. Step 6: Final answer
    x = 4,364.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.