Home / 6,131.19-8,460.78-3,478.53

Finding the Fourth Proportional to 6,131.19, 8,460.78 and 3,478.53

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Solution

The fourth proportional to 6,131.19, 8,460.78 and 3,478.53 is: 4,800.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,131.19 : 8,460.78 = 3,478.53 : x
  2. Step 2: Convert to fraction form
    6,131.19/8,460.78 = 3,478.53/x
  3. Step 3: Cross multiply
    6,131.19x = 8,460.78 × 3,478.53
  4. Step 4: Simplify right side
    6,131.19x = 29,431,077.05
  5. Step 5: Solve for x
    x = 29,431,077.05/6,131.19
  6. Step 6: Final answer
    x = 4,800.22

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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.