Home / 3,137.78-4,330.27-1,878.59

Finding the Fourth Proportional to 3,137.78, 4,330.27 and 1,878.59

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Solution

The fourth proportional to 3,137.78, 4,330.27 and 1,878.59 is: 2,592.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.78 : 4,330.27 = 1,878.59 : x
  2. Step 2: Convert to fraction form
    3,137.78/4,330.27 = 1,878.59/x
  3. Step 3: Cross multiply
    3,137.78x = 4,330.27 × 1,878.59
  4. Step 4: Simplify right side
    3,137.78x = 8,134,770.88
  5. Step 5: Solve for x
    x = 8,134,770.88/3,137.78
  6. Step 6: Final answer
    x = 2,592.53

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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.