Home / 2,291.84-3,435.20-2,107.32

Finding the Fourth Proportional to 2,291.84, 3,435.20 and 2,107.32

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Solution

The fourth proportional to 2,291.84, 3,435.20 and 2,107.32 is: 3,158.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.84 : 3,435.20 = 2,107.32 : x
  2. Step 2: Convert to fraction form
    2,291.84/3,435.20 = 2,107.32/x
  3. Step 3: Cross multiply
    2,291.84x = 3,435.20 × 2,107.32
  4. Step 4: Simplify right side
    2,291.84x = 7,239,065.66
  5. Step 5: Solve for x
    x = 7,239,065.66/2,291.84
  6. Step 6: Final answer
    x = 3,158.63

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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.