Home / 3,140.12-4,711.95-2,892.26

Finding the Fourth Proportional to 3,140.12, 4,711.95 and 2,892.26

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Solution

The fourth proportional to 3,140.12, 4,711.95 and 2,892.26 is: 4,340.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.12 : 4,711.95 = 2,892.26 : x
  2. Step 2: Convert to fraction form
    3,140.12/4,711.95 = 2,892.26/x
  3. Step 3: Cross multiply
    3,140.12x = 4,711.95 × 2,892.26
  4. Step 4: Simplify right side
    3,140.12x = 13,628,160.95
  5. Step 5: Solve for x
    x = 13,628,160.95/3,140.12
  6. Step 6: Final answer
    x = 4,340.02

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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.