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Finding the Fourth Proportional to 5,296.86, 7,309.71 and 2,939.22

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Solution

The fourth proportional to 5,296.86, 7,309.71 and 2,939.22 is: 4,056.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,296.86 : 7,309.71 = 2,939.22 : x
  2. Step 2: Convert to fraction form
    5,296.86/7,309.71 = 2,939.22/x
  3. Step 3: Cross multiply
    5,296.86x = 7,309.71 × 2,939.22
  4. Step 4: Simplify right side
    5,296.86x = 21,484,845.83
  5. Step 5: Solve for x
    x = 21,484,845.83/5,296.86
  6. Step 6: Final answer
    x = 4,056.15

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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.