Home / 2,910.48-4,365.08-830.45

Finding the Fourth Proportional to 2,910.48, 4,365.08 and 830.45

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Solution

The fourth proportional to 2,910.48, 4,365.08 and 830.45 is: 1,245.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.48 : 4,365.08 = 830.45 : x
  2. Step 2: Convert to fraction form
    2,910.48/4,365.08 = 830.45/x
  3. Step 3: Cross multiply
    2,910.48x = 4,365.08 × 830.45
  4. Step 4: Simplify right side
    2,910.48x = 3,624,954.71
  5. Step 5: Solve for x
    x = 3,624,954.71/2,910.48
  6. Step 6: Final answer
    x = 1,245.48

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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.