Home / 2,106.46-2,907.06-1,222.26

Finding the Fourth Proportional to 2,106.46, 2,907.06 and 1,222.26

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Solution

The fourth proportional to 2,106.46, 2,907.06 and 1,222.26 is: 1,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.46 : 2,907.06 = 1,222.26 : x
  2. Step 2: Convert to fraction form
    2,106.46/2,907.06 = 1,222.26/x
  3. Step 3: Cross multiply
    2,106.46x = 2,907.06 × 1,222.26
  4. Step 4: Simplify right side
    2,106.46x = 3,553,177.04
  5. Step 5: Solve for x
    x = 3,553,177.04/2,106.46
  6. Step 6: Final answer
    x = 1,686.80

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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.