Home / 3,001.05-4,501.20-809.94

Finding the Fourth Proportional to 3,001.05, 4,501.20 and 809.94

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Solution

The fourth proportional to 3,001.05, 4,501.20 and 809.94 is: 1,214.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,001.05 : 4,501.20 = 809.94 : x
  2. Step 2: Convert to fraction form
    3,001.05/4,501.20 = 809.94/x
  3. Step 3: Cross multiply
    3,001.05x = 4,501.20 × 809.94
  4. Step 4: Simplify right side
    3,001.05x = 3,645,701.93
  5. Step 5: Solve for x
    x = 3,645,701.93/3,001.05
  6. Step 6: Final answer
    x = 1,214.81

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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.