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Finding the Fourth Proportional to 3,777.89, 5,666.79 and 1,696.74

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Solution

The fourth proportional to 3,777.89, 5,666.79 and 1,696.74 is: 2,545.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.89 : 5,666.79 = 1,696.74 : x
  2. Step 2: Convert to fraction form
    3,777.89/5,666.79 = 1,696.74/x
  3. Step 3: Cross multiply
    3,777.89x = 5,666.79 × 1,696.74
  4. Step 4: Simplify right side
    3,777.89x = 9,615,069.26
  5. Step 5: Solve for x
    x = 9,615,069.26/3,777.89
  6. Step 6: Final answer
    x = 2,545.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.