Home / 5,296.40-7,309.27-3,172.28

Finding the Fourth Proportional to 5,296.40, 7,309.27 and 3,172.28

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Solution

The fourth proportional to 5,296.40, 7,309.27 and 3,172.28 is: 4,377.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,296.40 : 7,309.27 = 3,172.28 : x
  2. Step 2: Convert to fraction form
    5,296.40/7,309.27 = 3,172.28/x
  3. Step 3: Cross multiply
    5,296.40x = 7,309.27 × 3,172.28
  4. Step 4: Simplify right side
    5,296.40x = 23,187,047.67
  5. Step 5: Solve for x
    x = 23,187,047.67/5,296.40
  6. Step 6: Final answer
    x = 4,377.88

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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.