Home / 2,158.26-2,979.81-1,660.02

Finding the Fourth Proportional to 2,158.26, 2,979.81 and 1,660.02

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Solution

The fourth proportional to 2,158.26, 2,979.81 and 1,660.02 is: 2,291.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.26 : 2,979.81 = 1,660.02 : x
  2. Step 2: Convert to fraction form
    2,158.26/2,979.81 = 1,660.02/x
  3. Step 3: Cross multiply
    2,158.26x = 2,979.81 × 1,660.02
  4. Step 4: Simplify right side
    2,158.26x = 4,946,544.20
  5. Step 5: Solve for x
    x = 4,946,544.20/2,158.26
  6. Step 6: Final answer
    x = 2,291.91

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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.