Home / 4,812.39-6,640.29-2,923.65

Finding the Fourth Proportional to 4,812.39, 6,640.29 and 2,923.65

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Solution

The fourth proportional to 4,812.39, 6,640.29 and 2,923.65 is: 4,034.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.39 : 6,640.29 = 2,923.65 : x
  2. Step 2: Convert to fraction form
    4,812.39/6,640.29 = 2,923.65/x
  3. Step 3: Cross multiply
    4,812.39x = 6,640.29 × 2,923.65
  4. Step 4: Simplify right side
    4,812.39x = 19,413,883.86
  5. Step 5: Solve for x
    x = 19,413,883.86/4,812.39
  6. Step 6: Final answer
    x = 4,034.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.