Home / 2,101.29-2,899.85-1,576.41

Finding the Fourth Proportional to 2,101.29, 2,899.85 and 1,576.41

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Solution

The fourth proportional to 2,101.29, 2,899.85 and 1,576.41 is: 2,175.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.29 : 2,899.85 = 1,576.41 : x
  2. Step 2: Convert to fraction form
    2,101.29/2,899.85 = 1,576.41/x
  3. Step 3: Cross multiply
    2,101.29x = 2,899.85 × 1,576.41
  4. Step 4: Simplify right side
    2,101.29x = 4,571,344.66
  5. Step 5: Solve for x
    x = 4,571,344.66/2,101.29
  6. Step 6: Final answer
    x = 2,175.49

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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.