Home / 2,172.12-3,259.93-1,132.44

Finding the Fourth Proportional to 2,172.12, 3,259.93 and 1,132.44

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Solution

The fourth proportional to 2,172.12, 3,259.93 and 1,132.44 is: 1,699.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.12 : 3,259.93 = 1,132.44 : x
  2. Step 2: Convert to fraction form
    2,172.12/3,259.93 = 1,132.44/x
  3. Step 3: Cross multiply
    2,172.12x = 3,259.93 × 1,132.44
  4. Step 4: Simplify right side
    2,172.12x = 3,691,675.13
  5. Step 5: Solve for x
    x = 3,691,675.13/2,172.12
  6. Step 6: Final answer
    x = 1,699.57

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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.