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Finding the Fourth Proportional to 5,296.76, 7,309.53 and 2,938.90

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Solution

The fourth proportional to 5,296.76, 7,309.53 and 2,938.90 is: 4,055.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,296.76 : 7,309.53 = 2,938.90 : x
  2. Step 2: Convert to fraction form
    5,296.76/7,309.53 = 2,938.90/x
  3. Step 3: Cross multiply
    5,296.76x = 7,309.53 × 2,938.90
  4. Step 4: Simplify right side
    5,296.76x = 21,481,963.02
  5. Step 5: Solve for x
    x = 21,481,963.02/5,296.76
  6. Step 6: Final answer
    x = 4,055.68

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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.