Home / 5,385.15-8,066.39-2,465.91

Finding the Fourth Proportional to 5,385.15, 8,066.39 and 2,465.91

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Solution

The fourth proportional to 5,385.15, 8,066.39 and 2,465.91 is: 3,693.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.15 : 8,066.39 = 2,465.91 : x
  2. Step 2: Convert to fraction form
    5,385.15/8,066.39 = 2,465.91/x
  3. Step 3: Cross multiply
    5,385.15x = 8,066.39 × 2,465.91
  4. Step 4: Simplify right side
    5,385.15x = 19,890,979.44
  5. Step 5: Solve for x
    x = 19,890,979.44/5,385.15
  6. Step 6: Final answer
    x = 3,693.67

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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.