Home / 5,287.42-7,296.63-2,897.39

Finding the Fourth Proportional to 5,287.42, 7,296.63 and 2,897.39

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Solution

The fourth proportional to 5,287.42, 7,296.63 and 2,897.39 is: 3,998.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.42 : 7,296.63 = 2,897.39 : x
  2. Step 2: Convert to fraction form
    5,287.42/7,296.63 = 2,897.39/x
  3. Step 3: Cross multiply
    5,287.42x = 7,296.63 × 2,897.39
  4. Step 4: Simplify right side
    5,287.42x = 21,141,182.80
  5. Step 5: Solve for x
    x = 21,141,182.80/5,287.42
  6. Step 6: Final answer
    x = 3,998.39

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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.