Home / 2,911.90-4,368.28-1,352.06

Finding the Fourth Proportional to 2,911.90, 4,368.28 and 1,352.06

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Solution

The fourth proportional to 2,911.90, 4,368.28 and 1,352.06 is: 2,028.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.90 : 4,368.28 = 1,352.06 : x
  2. Step 2: Convert to fraction form
    2,911.90/4,368.28 = 1,352.06/x
  3. Step 3: Cross multiply
    2,911.90x = 4,368.28 × 1,352.06
  4. Step 4: Simplify right side
    2,911.90x = 5,906,176.66
  5. Step 5: Solve for x
    x = 5,906,176.66/2,911.90
  6. Step 6: Final answer
    x = 2,028.29

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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.