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Finding the Fourth Proportional to 2,576.88, 3,866.36 and 1,699.22

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Solution

The fourth proportional to 2,576.88, 3,866.36 and 1,699.22 is: 2,549.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.88 : 3,866.36 = 1,699.22 : x
  2. Step 2: Convert to fraction form
    2,576.88/3,866.36 = 1,699.22/x
  3. Step 3: Cross multiply
    2,576.88x = 3,866.36 × 1,699.22
  4. Step 4: Simplify right side
    2,576.88x = 6,569,797.41
  5. Step 5: Solve for x
    x = 6,569,797.41/2,576.88
  6. Step 6: Final answer
    x = 2,549.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.