Home / 4,131.40-5,699.42-2,875.44

Finding the Fourth Proportional to 4,131.40, 5,699.42 and 2,875.44

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Solution

The fourth proportional to 4,131.40, 5,699.42 and 2,875.44 is: 3,966.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,131.40 : 5,699.42 = 2,875.44 : x
  2. Step 2: Convert to fraction form
    4,131.40/5,699.42 = 2,875.44/x
  3. Step 3: Cross multiply
    4,131.40x = 5,699.42 × 2,875.44
  4. Step 4: Simplify right side
    4,131.40x = 16,388,340.24
  5. Step 5: Solve for x
    x = 16,388,340.24/4,131.40
  6. Step 6: Final answer
    x = 3,966.78

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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.