Home / 7,260.78-10,891.67-2,878.23

Finding the Fourth Proportional to 7,260.78, 10,891.67 and 2,878.23

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Solution

The fourth proportional to 7,260.78, 10,891.67 and 2,878.23 is: 4,317.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,260.78 : 10,891.67 = 2,878.23 : x
  2. Step 2: Convert to fraction form
    7,260.78/10,891.67 = 2,878.23/x
  3. Step 3: Cross multiply
    7,260.78x = 10,891.67 × 2,878.23
  4. Step 4: Simplify right side
    7,260.78x = 31,348,731.34
  5. Step 5: Solve for x
    x = 31,348,731.34/7,260.78
  6. Step 6: Final answer
    x = 4,317.54

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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.