Home / 2,172.92-3,263.49-1,356.91

Finding the Fourth Proportional to 2,172.92, 3,263.49 and 1,356.91

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Solution

The fourth proportional to 2,172.92, 3,263.49 and 1,356.91 is: 2,037.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.92 : 3,263.49 = 1,356.91 : x
  2. Step 2: Convert to fraction form
    2,172.92/3,263.49 = 1,356.91/x
  3. Step 3: Cross multiply
    2,172.92x = 3,263.49 × 1,356.91
  4. Step 4: Simplify right side
    2,172.92x = 4,428,254.06
  5. Step 5: Solve for x
    x = 4,428,254.06/2,172.92
  6. Step 6: Final answer
    x = 2,037.93

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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.