Home / 2,017.14-3,025.47-921.21

Finding the Fourth Proportional to 2,017.14, 3,025.47 and 921.21

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Solution

The fourth proportional to 2,017.14, 3,025.47 and 921.21 is: 1,381.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017.14 : 3,025.47 = 921.21 : x
  2. Step 2: Convert to fraction form
    2,017.14/3,025.47 = 921.21/x
  3. Step 3: Cross multiply
    2,017.14x = 3,025.47 × 921.21
  4. Step 4: Simplify right side
    2,017.14x = 2,787,093.22
  5. Step 5: Solve for x
    x = 2,787,093.22/2,017.14
  6. Step 6: Final answer
    x = 1,381.71

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1.5x scale

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.