Home / 4,921.86-6,792.42-2,905.38

Finding the Fourth Proportional to 4,921.86, 6,792.42 and 2,905.38

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Solution

The fourth proportional to 4,921.86, 6,792.42 and 2,905.38 is: 4,009.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.86 : 6,792.42 = 2,905.38 : x
  2. Step 2: Convert to fraction form
    4,921.86/6,792.42 = 2,905.38/x
  3. Step 3: Cross multiply
    4,921.86x = 6,792.42 × 2,905.38
  4. Step 4: Simplify right side
    4,921.86x = 19,734,561.22
  5. Step 5: Solve for x
    x = 19,734,561.22/4,921.86
  6. Step 6: Final answer
    x = 4,009.57

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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.