Home / 2,121.62-3,160.56-2,057.14

Finding the Fourth Proportional to 2,121.62, 3,160.56 and 2,057.14

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Solution

The fourth proportional to 2,121.62, 3,160.56 and 2,057.14 is: 3,064.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.62 : 3,160.56 = 2,057.14 : x
  2. Step 2: Convert to fraction form
    2,121.62/3,160.56 = 2,057.14/x
  3. Step 3: Cross multiply
    2,121.62x = 3,160.56 × 2,057.14
  4. Step 4: Simplify right side
    2,121.62x = 6,501,688.31
  5. Step 5: Solve for x
    x = 6,501,688.31/2,121.62
  6. Step 6: Final answer
    x = 3,064.49

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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.