Home / 2,135.07-3,177.72-2,114.55

Finding the Fourth Proportional to 2,135.07, 3,177.72 and 2,114.55

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Solution

The fourth proportional to 2,135.07, 3,177.72 and 2,114.55 is: 3,147.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.07 : 3,177.72 = 2,114.55 : x
  2. Step 2: Convert to fraction form
    2,135.07/3,177.72 = 2,114.55/x
  3. Step 3: Cross multiply
    2,135.07x = 3,177.72 × 2,114.55
  4. Step 4: Simplify right side
    2,135.07x = 6,719,447.83
  5. Step 5: Solve for x
    x = 6,719,447.83/2,135.07
  6. Step 6: Final answer
    x = 3,147.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.