Home / 6,243.30-8,612.19-4,119.21

Finding the Fourth Proportional to 6,243.30, 8,612.19 and 4,119.21

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Solution

The fourth proportional to 6,243.30, 8,612.19 and 4,119.21 is: 5,682.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,243.30 : 8,612.19 = 4,119.21 : x
  2. Step 2: Convert to fraction form
    6,243.30/8,612.19 = 4,119.21/x
  3. Step 3: Cross multiply
    6,243.30x = 8,612.19 × 4,119.21
  4. Step 4: Simplify right side
    6,243.30x = 35,475,419.17
  5. Step 5: Solve for x
    x = 35,475,419.17/6,243.30
  6. Step 6: Final answer
    x = 5,682.16

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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.