Home / 3,428.84-5,133.18-2,126.12

Finding the Fourth Proportional to 3,428.84, 5,133.18 and 2,126.12

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Solution

The fourth proportional to 3,428.84, 5,133.18 and 2,126.12 is: 3,182.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.84 : 5,133.18 = 2,126.12 : x
  2. Step 2: Convert to fraction form
    3,428.84/5,133.18 = 2,126.12/x
  3. Step 3: Cross multiply
    3,428.84x = 5,133.18 × 2,126.12
  4. Step 4: Simplify right side
    3,428.84x = 10,913,756.66
  5. Step 5: Solve for x
    x = 10,913,756.66/3,428.84
  6. Step 6: Final answer
    x = 3,182.93

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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.