Home / 6,141.29-8,478.20-4,135.23

Finding the Fourth Proportional to 6,141.29, 8,478.20 and 4,135.23

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Solution

The fourth proportional to 6,141.29, 8,478.20 and 4,135.23 is: 5,708.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,141.29 : 8,478.20 = 4,135.23 : x
  2. Step 2: Convert to fraction form
    6,141.29/8,478.20 = 4,135.23/x
  3. Step 3: Cross multiply
    6,141.29x = 8,478.20 × 4,135.23
  4. Step 4: Simplify right side
    6,141.29x = 35,059,317.32
  5. Step 5: Solve for x
    x = 35,059,317.32/6,141.29
  6. Step 6: Final answer
    x = 5,708.79

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Half scale
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Double scale
Find fourth proportional to 6,142.29, 8,479.58 and 4,136.23
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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.