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Finding the Fourth Proportional to 3,854.93, 5,782.76 and 1,775.51

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Solution

The fourth proportional to 3,854.93, 5,782.76 and 1,775.51 is: 2,663.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.93 : 5,782.76 = 1,775.51 : x
  2. Step 2: Convert to fraction form
    3,854.93/5,782.76 = 1,775.51/x
  3. Step 3: Cross multiply
    3,854.93x = 5,782.76 × 1,775.51
  4. Step 4: Simplify right side
    3,854.93x = 10,267,348.21
  5. Step 5: Solve for x
    x = 10,267,348.21/3,854.93
  6. Step 6: Final answer
    x = 2,663.43

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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.