Home / 3,873.24-5,345.64-2,877.12

Finding the Fourth Proportional to 3,873.24, 5,345.64 and 2,877.12

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Solution

The fourth proportional to 3,873.24, 5,345.64 and 2,877.12 is: 3,970.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.24 : 5,345.64 = 2,877.12 : x
  2. Step 2: Convert to fraction form
    3,873.24/5,345.64 = 2,877.12/x
  3. Step 3: Cross multiply
    3,873.24x = 5,345.64 × 2,877.12
  4. Step 4: Simplify right side
    3,873.24x = 15,380,047.76
  5. Step 5: Solve for x
    x = 15,380,047.76/3,873.24
  6. Step 6: Final answer
    x = 3,970.85

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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.