Home / 2,486.16-3,428.28-2,133.36

Finding the Fourth Proportional to 2,486.16, 3,428.28 and 2,133.36

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Solution

The fourth proportional to 2,486.16, 3,428.28 and 2,133.36 is: 2,941.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.16 : 3,428.28 = 2,133.36 : x
  2. Step 2: Convert to fraction form
    2,486.16/3,428.28 = 2,133.36/x
  3. Step 3: Cross multiply
    2,486.16x = 3,428.28 × 2,133.36
  4. Step 4: Simplify right side
    2,486.16x = 7,313,755.42
  5. Step 5: Solve for x
    x = 7,313,755.42/2,486.16
  6. Step 6: Final answer
    x = 2,941.79

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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.