Home / 3,948.57-5,923.22-2,921.31

Finding the Fourth Proportional to 3,948.57, 5,923.22 and 2,921.31

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Solution

The fourth proportional to 3,948.57, 5,923.22 and 2,921.31 is: 4,382.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.57 : 5,923.22 = 2,921.31 : x
  2. Step 2: Convert to fraction form
    3,948.57/5,923.22 = 2,921.31/x
  3. Step 3: Cross multiply
    3,948.57x = 5,923.22 × 2,921.31
  4. Step 4: Simplify right side
    3,948.57x = 17,303,547.21
  5. Step 5: Solve for x
    x = 17,303,547.21/3,948.57
  6. Step 6: Final answer
    x = 4,382.23

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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.