Home / 2,166.05-2,989.19-1,270.32

Finding the Fourth Proportional to 2,166.05, 2,989.19 and 1,270.32

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Solution

The fourth proportional to 2,166.05, 2,989.19 and 1,270.32 is: 1,753.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.05 : 2,989.19 = 1,270.32 : x
  2. Step 2: Convert to fraction form
    2,166.05/2,989.19 = 1,270.32/x
  3. Step 3: Cross multiply
    2,166.05x = 2,989.19 × 1,270.32
  4. Step 4: Simplify right side
    2,166.05x = 3,797,226.25
  5. Step 5: Solve for x
    x = 3,797,226.25/2,166.05
  6. Step 6: Final answer
    x = 1,753.07

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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.