Home / 3,766.61-5,655.09-1,918.97

Finding the Fourth Proportional to 3,766.61, 5,655.09 and 1,918.97

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Solution

The fourth proportional to 3,766.61, 5,655.09 and 1,918.97 is: 2,881.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,766.61 : 5,655.09 = 1,918.97 : x
  2. Step 2: Convert to fraction form
    3,766.61/5,655.09 = 1,918.97/x
  3. Step 3: Cross multiply
    3,766.61x = 5,655.09 × 1,918.97
  4. Step 4: Simplify right side
    3,766.61x = 10,851,948.06
  5. Step 5: Solve for x
    x = 10,851,948.06/3,766.61
  6. Step 6: Final answer
    x = 2,881.09

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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.