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Finding the Fourth Proportional to 5,287.69, 7,297.14 and 2,930.01

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Solution

The fourth proportional to 5,287.69, 7,297.14 and 2,930.01 is: 4,043.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.69 : 7,297.14 = 2,930.01 : x
  2. Step 2: Convert to fraction form
    5,287.69/7,297.14 = 2,930.01/x
  3. Step 3: Cross multiply
    5,287.69x = 7,297.14 × 2,930.01
  4. Step 4: Simplify right side
    5,287.69x = 21,380,693.17
  5. Step 5: Solve for x
    x = 21,380,693.17/5,287.69
  6. Step 6: Final answer
    x = 4,043.48

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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.