Home / 5,665.05-7,818.39-3,428.16

Finding the Fourth Proportional to 5,665.05, 7,818.39 and 3,428.16

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Solution

The fourth proportional to 5,665.05, 7,818.39 and 3,428.16 is: 4,731.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,665.05 : 7,818.39 = 3,428.16 : x
  2. Step 2: Convert to fraction form
    5,665.05/7,818.39 = 3,428.16/x
  3. Step 3: Cross multiply
    5,665.05x = 7,818.39 × 3,428.16
  4. Step 4: Simplify right side
    5,665.05x = 26,802,691.86
  5. Step 5: Solve for x
    x = 26,802,691.86/5,665.05
  6. Step 6: Final answer
    x = 4,731.24

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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.