Home / 4,969.25-6,857.32-2,979.42

Finding the Fourth Proportional to 4,969.25, 6,857.32 and 2,979.42

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Solution

The fourth proportional to 4,969.25, 6,857.32 and 2,979.42 is: 4,111.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,969.25 : 6,857.32 = 2,979.42 : x
  2. Step 2: Convert to fraction form
    4,969.25/6,857.32 = 2,979.42/x
  3. Step 3: Cross multiply
    4,969.25x = 6,857.32 × 2,979.42
  4. Step 4: Simplify right side
    4,969.25x = 20,430,821.46
  5. Step 5: Solve for x
    x = 20,430,821.46/4,969.25
  6. Step 6: Final answer
    x = 4,111.45

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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.