Home / 5,617.15-8,415.20-4,698.61

Finding the Fourth Proportional to 5,617.15, 8,415.20 and 4,698.61

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Solution

The fourth proportional to 5,617.15, 8,415.20 and 4,698.61 is: 7,039.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.15 : 8,415.20 = 4,698.61 : x
  2. Step 2: Convert to fraction form
    5,617.15/8,415.20 = 4,698.61/x
  3. Step 3: Cross multiply
    5,617.15x = 8,415.20 × 4,698.61
  4. Step 4: Simplify right side
    5,617.15x = 39,539,719.38
  5. Step 5: Solve for x
    x = 39,539,719.38/5,617.15
  6. Step 6: Final answer
    x = 7,039.11

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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.