Home / 7,091.93-9,786.71-3,948.11

Finding the Fourth Proportional to 7,091.93, 9,786.71 and 3,948.11

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Solution

The fourth proportional to 7,091.93, 9,786.71 and 3,948.11 is: 5,448.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.93 : 9,786.71 = 3,948.11 : x
  2. Step 2: Convert to fraction form
    7,091.93/9,786.71 = 3,948.11/x
  3. Step 3: Cross multiply
    7,091.93x = 9,786.71 × 3,948.11
  4. Step 4: Simplify right side
    7,091.93x = 38,638,938.94
  5. Step 5: Solve for x
    x = 38,638,938.94/7,091.93
  6. Step 6: Final answer
    x = 5,448.30

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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.