Home / 1,172.18-1,756.80-1,025.58

Finding the Fourth Proportional to 1,172.18, 1,756.80 and 1,025.58

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Solution

The fourth proportional to 1,172.18, 1,756.80 and 1,025.58 is: 1,537.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172.18 : 1,756.80 = 1,025.58 : x
  2. Step 2: Convert to fraction form
    1,172.18/1,756.80 = 1,025.58/x
  3. Step 3: Cross multiply
    1,172.18x = 1,756.80 × 1,025.58
  4. Step 4: Simplify right side
    1,172.18x = 1,801,745.53
  5. Step 5: Solve for x
    x = 1,801,745.53/1,172.18
  6. Step 6: Final answer
    x = 1,537.09

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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.