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Finding the Fourth Proportional to 2,504.70, 3,452.80 and 1,971.87

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Solution

The fourth proportional to 2,504.70, 3,452.80 and 1,971.87 is: 2,718.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,504.70 : 3,452.80 = 1,971.87 : x
  2. Step 2: Convert to fraction form
    2,504.70/3,452.80 = 1,971.87/x
  3. Step 3: Cross multiply
    2,504.70x = 3,452.80 × 1,971.87
  4. Step 4: Simplify right side
    2,504.70x = 6,808,472.74
  5. Step 5: Solve for x
    x = 6,808,472.74/2,504.70
  6. Step 6: Final answer
    x = 2,718.28

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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.