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Finding the Fourth Proportional to 2,506.50, 3,458.97 and 1,402.50

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Solution

The fourth proportional to 2,506.50, 3,458.97 and 1,402.50 is: 1,935.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,506.50 : 3,458.97 = 1,402.50 : x
  2. Step 2: Convert to fraction form
    2,506.50/3,458.97 = 1,402.50/x
  3. Step 3: Cross multiply
    2,506.50x = 3,458.97 × 1,402.50
  4. Step 4: Simplify right side
    2,506.50x = 4,851,205.43
  5. Step 5: Solve for x
    x = 4,851,205.43/2,506.50
  6. Step 6: Final answer
    x = 1,935.45

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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.