Home / 3,137.88-4,329.30-2,090.12

Finding the Fourth Proportional to 3,137.88, 4,329.30 and 2,090.12

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Solution

The fourth proportional to 3,137.88, 4,329.30 and 2,090.12 is: 2,883.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.88 : 4,329.30 = 2,090.12 : x
  2. Step 2: Convert to fraction form
    3,137.88/4,329.30 = 2,090.12/x
  3. Step 3: Cross multiply
    3,137.88x = 4,329.30 × 2,090.12
  4. Step 4: Simplify right side
    3,137.88x = 9,048,756.52
  5. Step 5: Solve for x
    x = 9,048,756.52/3,137.88
  6. Step 6: Final answer
    x = 2,883.72

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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.