Home / 5,287.21-7,296.25-2,897.23

Finding the Fourth Proportional to 5,287.21, 7,296.25 and 2,897.23

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Solution

The fourth proportional to 5,287.21, 7,296.25 and 2,897.23 is: 3,998.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.21 : 7,296.25 = 2,897.23 : x
  2. Step 2: Convert to fraction form
    5,287.21/7,296.25 = 2,897.23/x
  3. Step 3: Cross multiply
    5,287.21x = 7,296.25 × 2,897.23
  4. Step 4: Simplify right side
    5,287.21x = 21,138,914.39
  5. Step 5: Solve for x
    x = 21,138,914.39/5,287.21
  6. Step 6: Final answer
    x = 3,998.12

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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.