Home / 7,305.49-10,081.56-3,948.28

Finding the Fourth Proportional to 7,305.49, 10,081.56 and 3,948.28

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Solution

The fourth proportional to 7,305.49, 10,081.56 and 3,948.28 is: 5,448.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.49 : 10,081.56 = 3,948.28 : x
  2. Step 2: Convert to fraction form
    7,305.49/10,081.56 = 3,948.28/x
  3. Step 3: Cross multiply
    7,305.49x = 10,081.56 × 3,948.28
  4. Step 4: Simplify right side
    7,305.49x = 39,804,821.72
  5. Step 5: Solve for x
    x = 39,804,821.72/7,305.49
  6. Step 6: Final answer
    x = 5,448.62

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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.