Home / 6,465.05-8,921.39-3,775.95

Finding the Fourth Proportional to 6,465.05, 8,921.39 and 3,775.95

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Solution

The fourth proportional to 6,465.05, 8,921.39 and 3,775.95 is: 5,210.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,465.05 : 8,921.39 = 3,775.95 : x
  2. Step 2: Convert to fraction form
    6,465.05/8,921.39 = 3,775.95/x
  3. Step 3: Cross multiply
    6,465.05x = 8,921.39 × 3,775.95
  4. Step 4: Simplify right side
    6,465.05x = 33,686,724.93
  5. Step 5: Solve for x
    x = 33,686,724.93/6,465.05
  6. Step 6: Final answer
    x = 5,210.59

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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.