Home / 2,172.19-3,260.55-1,077.34

Finding the Fourth Proportional to 2,172.19, 3,260.55 and 1,077.34

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Solution

The fourth proportional to 2,172.19, 3,260.55 and 1,077.34 is: 1,617.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.19 : 3,260.55 = 1,077.34 : x
  2. Step 2: Convert to fraction form
    2,172.19/3,260.55 = 1,077.34/x
  3. Step 3: Cross multiply
    2,172.19x = 3,260.55 × 1,077.34
  4. Step 4: Simplify right side
    2,172.19x = 3,512,720.94
  5. Step 5: Solve for x
    x = 3,512,720.94/2,172.19
  6. Step 6: Final answer
    x = 1,617.13

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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.