Home / 2,106.92-2,907.29-1,222.59

Finding the Fourth Proportional to 2,106.92, 2,907.29 and 1,222.59

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Solution

The fourth proportional to 2,106.92, 2,907.29 and 1,222.59 is: 1,687.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.92 : 2,907.29 = 1,222.59 : x
  2. Step 2: Convert to fraction form
    2,106.92/2,907.29 = 1,222.59/x
  3. Step 3: Cross multiply
    2,106.92x = 2,907.29 × 1,222.59
  4. Step 4: Simplify right side
    2,106.92x = 3,554,417.57
  5. Step 5: Solve for x
    x = 3,554,417.57/2,106.92
  6. Step 6: Final answer
    x = 1,687.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.