Home / 1,192.12-1,652.15-1,173.90

Finding the Fourth Proportional to 1,192.12, 1,652.15 and 1,173.90

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Solution

The fourth proportional to 1,192.12, 1,652.15 and 1,173.90 is: 1,626.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.12 : 1,652.15 = 1,173.90 : x
  2. Step 2: Convert to fraction form
    1,192.12/1,652.15 = 1,173.90/x
  3. Step 3: Cross multiply
    1,192.12x = 1,652.15 × 1,173.90
  4. Step 4: Simplify right side
    1,192.12x = 1,939,458.89
  5. Step 5: Solve for x
    x = 1,939,458.89/1,192.12
  6. Step 6: Final answer
    x = 1,626.90

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.