Home / 3,137.68-4,330.06-1,878.79

Finding the Fourth Proportional to 3,137.68, 4,330.06 and 1,878.79

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Solution

The fourth proportional to 3,137.68, 4,330.06 and 1,878.79 is: 2,592.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.68 : 4,330.06 = 1,878.79 : x
  2. Step 2: Convert to fraction form
    3,137.68/4,330.06 = 1,878.79/x
  3. Step 3: Cross multiply
    3,137.68x = 4,330.06 × 1,878.79
  4. Step 4: Simplify right side
    3,137.68x = 8,135,242.38
  5. Step 5: Solve for x
    x = 8,135,242.38/3,137.68
  6. Step 6: Final answer
    x = 2,592.76

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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.