Home / 5,511.43-7,605.66-3,121.06

Finding the Fourth Proportional to 5,511.43, 7,605.66 and 3,121.06

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Solution

The fourth proportional to 5,511.43, 7,605.66 and 3,121.06 is: 4,307.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,511.43 : 7,605.66 = 3,121.06 : x
  2. Step 2: Convert to fraction form
    5,511.43/7,605.66 = 3,121.06/x
  3. Step 3: Cross multiply
    5,511.43x = 7,605.66 × 3,121.06
  4. Step 4: Simplify right side
    5,511.43x = 23,737,721.20
  5. Step 5: Solve for x
    x = 23,737,721.20/5,511.43
  6. Step 6: Final answer
    x = 4,307.00

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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.