Home / 3,340.05-5,009.01-1,391.77

Finding the Fourth Proportional to 3,340.05, 5,009.01 and 1,391.77

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Solution

The fourth proportional to 3,340.05, 5,009.01 and 1,391.77 is: 2,087.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.05 : 5,009.01 = 1,391.77 : x
  2. Step 2: Convert to fraction form
    3,340.05/5,009.01 = 1,391.77/x
  3. Step 3: Cross multiply
    3,340.05x = 5,009.01 × 1,391.77
  4. Step 4: Simplify right side
    3,340.05x = 6,971,389.85
  5. Step 5: Solve for x
    x = 6,971,389.85/3,340.05
  6. Step 6: Final answer
    x = 2,087.21

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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.