Home / 5,665.51-7,818.36-3,147.82

Finding the Fourth Proportional to 5,665.51, 7,818.36 and 3,147.82

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Solution

The fourth proportional to 5,665.51, 7,818.36 and 3,147.82 is: 4,343.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,665.51 : 7,818.36 = 3,147.82 : x
  2. Step 2: Convert to fraction form
    5,665.51/7,818.36 = 3,147.82/x
  3. Step 3: Cross multiply
    5,665.51x = 7,818.36 × 3,147.82
  4. Step 4: Simplify right side
    5,665.51x = 24,610,789.98
  5. Step 5: Solve for x
    x = 24,610,789.98/5,665.51
  6. Step 6: Final answer
    x = 4,343.97

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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.