Home / 6,085.20-9,109.56-5,429.10

Finding the Fourth Proportional to 6,085.20, 9,109.56 and 5,429.10

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Solution

The fourth proportional to 6,085.20, 9,109.56 and 5,429.10 is: 8,127.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,085.20 : 9,109.56 = 5,429.10 : x
  2. Step 2: Convert to fraction form
    6,085.20/9,109.56 = 5,429.10/x
  3. Step 3: Cross multiply
    6,085.20x = 9,109.56 × 5,429.10
  4. Step 4: Simplify right side
    6,085.20x = 49,456,712.20
  5. Step 5: Solve for x
    x = 49,456,712.20/6,085.20
  6. Step 6: Final answer
    x = 8,127.38

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.