Home / 2,072.16-2,858.90-1,274.66

Finding the Fourth Proportional to 2,072.16, 2,858.90 and 1,274.66

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Solution

The fourth proportional to 2,072.16, 2,858.90 and 1,274.66 is: 1,758.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.16 : 2,858.90 = 1,274.66 : x
  2. Step 2: Convert to fraction form
    2,072.16/2,858.90 = 1,274.66/x
  3. Step 3: Cross multiply
    2,072.16x = 2,858.90 × 1,274.66
  4. Step 4: Simplify right side
    2,072.16x = 3,644,123.57
  5. Step 5: Solve for x
    x = 3,644,123.57/2,072.16
  6. Step 6: Final answer
    x = 1,758.61

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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.