Home / 6,072.86-8,380.44-3,420.26

Finding the Fourth Proportional to 6,072.86, 8,380.44 and 3,420.26

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Solution

The fourth proportional to 6,072.86, 8,380.44 and 3,420.26 is: 4,719.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,072.86 : 8,380.44 = 3,420.26 : x
  2. Step 2: Convert to fraction form
    6,072.86/8,380.44 = 3,420.26/x
  3. Step 3: Cross multiply
    6,072.86x = 8,380.44 × 3,420.26
  4. Step 4: Simplify right side
    6,072.86x = 28,663,224.71
  5. Step 5: Solve for x
    x = 28,663,224.71/6,072.86
  6. Step 6: Final answer
    x = 4,719.89

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Half scale
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Double scale
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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.