Home / 5,287.69-7,296.45-2,929.60

Finding the Fourth Proportional to 5,287.69, 7,296.45 and 2,929.60

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Solution

The fourth proportional to 5,287.69, 7,296.45 and 2,929.60 is: 4,042.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.69 : 7,296.45 = 2,929.60 : x
  2. Step 2: Convert to fraction form
    5,287.69/7,296.45 = 2,929.60/x
  3. Step 3: Cross multiply
    5,287.69x = 7,296.45 × 2,929.60
  4. Step 4: Simplify right side
    5,287.69x = 21,375,679.92
  5. Step 5: Solve for x
    x = 21,375,679.92/5,287.69
  6. Step 6: Final answer
    x = 4,042.54

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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.