Home / 2,910.24-4,365.06-830.12

Finding the Fourth Proportional to 2,910.24, 4,365.06 and 830.12

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Solution

The fourth proportional to 2,910.24, 4,365.06 and 830.12 is: 1,245.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.24 : 4,365.06 = 830.12 : x
  2. Step 2: Convert to fraction form
    2,910.24/4,365.06 = 830.12/x
  3. Step 3: Cross multiply
    2,910.24x = 4,365.06 × 830.12
  4. Step 4: Simplify right side
    2,910.24x = 3,623,498.67
  5. Step 5: Solve for x
    x = 3,623,498.67/2,910.24
  6. Step 6: Final answer
    x = 1,245.09

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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.