Home / 3,640.34-5,462.13-1,908.56

Finding the Fourth Proportional to 3,640.34, 5,462.13 and 1,908.56

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Solution

The fourth proportional to 3,640.34, 5,462.13 and 1,908.56 is: 2,863.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.34 : 5,462.13 = 1,908.56 : x
  2. Step 2: Convert to fraction form
    3,640.34/5,462.13 = 1,908.56/x
  3. Step 3: Cross multiply
    3,640.34x = 5,462.13 × 1,908.56
  4. Step 4: Simplify right side
    3,640.34x = 10,424,823.65
  5. Step 5: Solve for x
    x = 10,424,823.65/3,640.34
  6. Step 6: Final answer
    x = 2,863.69

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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.