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Finding the Fourth Proportional to 3,673.61, 5,069.48 and 2,101.60

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Solution

The fourth proportional to 3,673.61, 5,069.48 and 2,101.60 is: 2,900.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,673.61 : 5,069.48 = 2,101.60 : x
  2. Step 2: Convert to fraction form
    3,673.61/5,069.48 = 2,101.60/x
  3. Step 3: Cross multiply
    3,673.61x = 5,069.48 × 2,101.60
  4. Step 4: Simplify right side
    3,673.61x = 10,653,995.99
  5. Step 5: Solve for x
    x = 10,653,995.99/3,673.61
  6. Step 6: Final answer
    x = 2,900.15

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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.