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Finding the Fourth Proportional to 2,609.88, 3,601.98 and 1,681.08

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Solution

The fourth proportional to 2,609.88, 3,601.98 and 1,681.08 is: 2,320.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.88 : 3,601.98 = 1,681.08 : x
  2. Step 2: Convert to fraction form
    2,609.88/3,601.98 = 1,681.08/x
  3. Step 3: Cross multiply
    2,609.88x = 3,601.98 × 1,681.08
  4. Step 4: Simplify right side
    2,609.88x = 6,055,216.54
  5. Step 5: Solve for x
    x = 6,055,216.54/2,609.88
  6. Step 6: Final answer
    x = 2,320.11

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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.