Home / 3,857.15-5,322.85-2,088.75

Finding the Fourth Proportional to 3,857.15, 5,322.85 and 2,088.75

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Solution

The fourth proportional to 3,857.15, 5,322.85 and 2,088.75 is: 2,882.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.15 : 5,322.85 = 2,088.75 : x
  2. Step 2: Convert to fraction form
    3,857.15/5,322.85 = 2,088.75/x
  3. Step 3: Cross multiply
    3,857.15x = 5,322.85 × 2,088.75
  4. Step 4: Simplify right side
    3,857.15x = 11,118,081.55
  5. Step 5: Solve for x
    x = 11,118,081.55/3,857.15
  6. Step 6: Final answer
    x = 2,882.46

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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.