Home / 3,854.46-5,319.69-2,858.16

Finding the Fourth Proportional to 3,854.46, 5,319.69 and 2,858.16

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Solution

The fourth proportional to 3,854.46, 5,319.69 and 2,858.16 is: 3,944.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.46 : 5,319.69 = 2,858.16 : x
  2. Step 2: Convert to fraction form
    3,854.46/5,319.69 = 2,858.16/x
  3. Step 3: Cross multiply
    3,854.46x = 5,319.69 × 2,858.16
  4. Step 4: Simplify right side
    3,854.46x = 15,204,525.17
  5. Step 5: Solve for x
    x = 15,204,525.17/3,854.46
  6. Step 6: Final answer
    x = 3,944.66

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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.