Home / 7,220.06-10,830.16-2,540.20

Finding the Fourth Proportional to 7,220.06, 10,830.16 and 2,540.20

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Solution

The fourth proportional to 7,220.06, 10,830.16 and 2,540.20 is: 3,810.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.06 : 10,830.16 = 2,540.20 : x
  2. Step 2: Convert to fraction form
    7,220.06/10,830.16 = 2,540.20/x
  3. Step 3: Cross multiply
    7,220.06x = 10,830.16 × 2,540.20
  4. Step 4: Simplify right side
    7,220.06x = 27,510,772.43
  5. Step 5: Solve for x
    x = 27,510,772.43/7,220.06
  6. Step 6: Final answer
    x = 3,810.32

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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.