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Finding the Fourth Proportional to 2,888.87, 3,985.65 and 1,629.77

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Solution

The fourth proportional to 2,888.87, 3,985.65 and 1,629.77 is: 2,248.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.87 : 3,985.65 = 1,629.77 : x
  2. Step 2: Convert to fraction form
    2,888.87/3,985.65 = 1,629.77/x
  3. Step 3: Cross multiply
    2,888.87x = 3,985.65 × 1,629.77
  4. Step 4: Simplify right side
    2,888.87x = 6,495,692.80
  5. Step 5: Solve for x
    x = 6,495,692.80/2,888.87
  6. Step 6: Final answer
    x = 2,248.52

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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.