Home / 5,387.16-8,065.32-3,907.68

Finding the Fourth Proportional to 5,387.16, 8,065.32 and 3,907.68

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Solution

The fourth proportional to 5,387.16, 8,065.32 and 3,907.68 is: 5,850.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.16 : 8,065.32 = 3,907.68 : x
  2. Step 2: Convert to fraction form
    5,387.16/8,065.32 = 3,907.68/x
  3. Step 3: Cross multiply
    5,387.16x = 8,065.32 × 3,907.68
  4. Step 4: Simplify right side
    5,387.16x = 31,516,689.66
  5. Step 5: Solve for x
    x = 31,516,689.66/5,387.16
  6. Step 6: Final answer
    x = 5,850.33

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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.