Home / 3,105.13-4,657.70-1,053.13

Finding the Fourth Proportional to 3,105.13, 4,657.70 and 1,053.13

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Solution

The fourth proportional to 3,105.13, 4,657.70 and 1,053.13 is: 1,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.13 : 4,657.70 = 1,053.13 : x
  2. Step 2: Convert to fraction form
    3,105.13/4,657.70 = 1,053.13/x
  3. Step 3: Cross multiply
    3,105.13x = 4,657.70 × 1,053.13
  4. Step 4: Simplify right side
    3,105.13x = 4,905,163.60
  5. Step 5: Solve for x
    x = 4,905,163.60/3,105.13
  6. Step 6: Final answer
    x = 1,579.70

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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.