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Finding the Fourth Proportional to 2,670.77, 3,686.01 and 1,622.23

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Solution

The fourth proportional to 2,670.77, 3,686.01 and 1,622.23 is: 2,238.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.77 : 3,686.01 = 1,622.23 : x
  2. Step 2: Convert to fraction form
    2,670.77/3,686.01 = 1,622.23/x
  3. Step 3: Cross multiply
    2,670.77x = 3,686.01 × 1,622.23
  4. Step 4: Simplify right side
    2,670.77x = 5,979,540.70
  5. Step 5: Solve for x
    x = 5,979,540.70/2,670.77
  6. Step 6: Final answer
    x = 2,238.88

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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.