Home / 2,910.06-4,365.09-830.10

Finding the Fourth Proportional to 2,910.06, 4,365.09 and 830.10

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Solution

The fourth proportional to 2,910.06, 4,365.09 and 830.10 is: 1,245.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.06 : 4,365.09 = 830.10 : x
  2. Step 2: Convert to fraction form
    2,910.06/4,365.09 = 830.10/x
  3. Step 3: Cross multiply
    2,910.06x = 4,365.09 × 830.10
  4. Step 4: Simplify right side
    2,910.06x = 3,623,461.21
  5. Step 5: Solve for x
    x = 3,623,461.21/2,910.06
  6. Step 6: Final answer
    x = 1,245.15

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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.