Home / 3,810.32-5,712.20-2,656.88

Finding the Fourth Proportional to 3,810.32, 5,712.20 and 2,656.88

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Solution

The fourth proportional to 3,810.32, 5,712.20 and 2,656.88 is: 3,983.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.32 : 5,712.20 = 2,656.88 : x
  2. Step 2: Convert to fraction form
    3,810.32/5,712.20 = 2,656.88/x
  3. Step 3: Cross multiply
    3,810.32x = 5,712.20 × 2,656.88
  4. Step 4: Simplify right side
    3,810.32x = 15,176,629.94
  5. Step 5: Solve for x
    x = 15,176,629.94/3,810.32
  6. Step 6: Final answer
    x = 3,983.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.