Home / 2,905.17-4,005.27-2,309.64

Finding the Fourth Proportional to 2,905.17, 4,005.27 and 2,309.64

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Solution

The fourth proportional to 2,905.17, 4,005.27 and 2,309.64 is: 3,184.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.17 : 4,005.27 = 2,309.64 : x
  2. Step 2: Convert to fraction form
    2,905.17/4,005.27 = 2,309.64/x
  3. Step 3: Cross multiply
    2,905.17x = 4,005.27 × 2,309.64
  4. Step 4: Simplify right side
    2,905.17x = 9,250,731.80
  5. Step 5: Solve for x
    x = 9,250,731.80/2,905.17
  6. Step 6: Final answer
    x = 3,184.23

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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.