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Finding the Fourth Proportional to 1,807.27, 2,494.01 and 979.27

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Solution

The fourth proportional to 1,807.27, 2,494.01 and 979.27 is: 1,351.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,807.27 : 2,494.01 = 979.27 : x
  2. Step 2: Convert to fraction form
    1,807.27/2,494.01 = 979.27/x
  3. Step 3: Cross multiply
    1,807.27x = 2,494.01 × 979.27
  4. Step 4: Simplify right side
    1,807.27x = 2,442,296.70
  5. Step 5: Solve for x
    x = 2,442,296.70/1,807.27
  6. Step 6: Final answer
    x = 1,351.38

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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.