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Finding the Fourth Proportional to 1,974.02, 2,718.60 and 1,930.96

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Solution

The fourth proportional to 1,974.02, 2,718.60 and 1,930.96 is: 2,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.02 : 2,718.60 = 1,930.96 : x
  2. Step 2: Convert to fraction form
    1,974.02/2,718.60 = 1,930.96/x
  3. Step 3: Cross multiply
    1,974.02x = 2,718.60 × 1,930.96
  4. Step 4: Simplify right side
    1,974.02x = 5,249,494.26
  5. Step 5: Solve for x
    x = 5,249,494.26/1,974.02
  6. Step 6: Final answer
    x = 2,659.30

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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.