Home / 5,918.15-8,170.00-3,680.74

Finding the Fourth Proportional to 5,918.15, 8,170.00 and 3,680.74

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Solution

The fourth proportional to 5,918.15, 8,170.00 and 3,680.74 is: 5,081.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.15 : 8,170.00 = 3,680.74 : x
  2. Step 2: Convert to fraction form
    5,918.15/8,170.00 = 3,680.74/x
  3. Step 3: Cross multiply
    5,918.15x = 8,170.00 × 3,680.74
  4. Step 4: Simplify right side
    5,918.15x = 30,071,649.62
  5. Step 5: Solve for x
    x = 30,071,649.62/5,918.15
  6. Step 6: Final answer
    x = 5,081.26

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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.