Home / 7,380.90-11,071.69-2,116.69

Finding the Fourth Proportional to 7,380.90, 11,071.69 and 2,116.69

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Solution

The fourth proportional to 7,380.90, 11,071.69 and 2,116.69 is: 3,175.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.90 : 11,071.69 = 2,116.69 : x
  2. Step 2: Convert to fraction form
    7,380.90/11,071.69 = 2,116.69/x
  3. Step 3: Cross multiply
    7,380.90x = 11,071.69 × 2,116.69
  4. Step 4: Simplify right side
    7,380.90x = 23,435,302.54
  5. Step 5: Solve for x
    x = 23,435,302.54/7,380.90
  6. Step 6: Final answer
    x = 3,175.13

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1.5x scale

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.