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Finding the Fourth Proportional to 2,648.87, 3,656.66 and 1,654.79

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Solution

The fourth proportional to 2,648.87, 3,656.66 and 1,654.79 is: 2,284.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648.87 : 3,656.66 = 1,654.79 : x
  2. Step 2: Convert to fraction form
    2,648.87/3,656.66 = 1,654.79/x
  3. Step 3: Cross multiply
    2,648.87x = 3,656.66 × 1,654.79
  4. Step 4: Simplify right side
    2,648.87x = 6,051,004.40
  5. Step 5: Solve for x
    x = 6,051,004.40/2,648.87
  6. Step 6: Final answer
    x = 2,284.38

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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.