Home / 1,353.19-2,025.67-866.58

Finding the Fourth Proportional to 1,353.19, 2,025.67 and 866.58

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Solution

The fourth proportional to 1,353.19, 2,025.67 and 866.58 is: 1,297.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.19 : 2,025.67 = 866.58 : x
  2. Step 2: Convert to fraction form
    1,353.19/2,025.67 = 866.58/x
  3. Step 3: Cross multiply
    1,353.19x = 2,025.67 × 866.58
  4. Step 4: Simplify right side
    1,353.19x = 1,755,397.88
  5. Step 5: Solve for x
    x = 1,755,397.88/1,353.19
  6. Step 6: Final answer
    x = 1,297.23

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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.