Home / 3,400.81-5,101.20-935.65

Finding the Fourth Proportional to 3,400.81, 5,101.20 and 935.65

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Solution

The fourth proportional to 3,400.81, 5,101.20 and 935.65 is: 1,403.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.81 : 5,101.20 = 935.65 : x
  2. Step 2: Convert to fraction form
    3,400.81/5,101.20 = 935.65/x
  3. Step 3: Cross multiply
    3,400.81x = 5,101.20 × 935.65
  4. Step 4: Simplify right side
    3,400.81x = 4,772,937.78
  5. Step 5: Solve for x
    x = 4,772,937.78/3,400.81
  6. Step 6: Final answer
    x = 1,403.47

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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.