Home / 3,886.06-5,362.76-2,117.66

Finding the Fourth Proportional to 3,886.06, 5,362.76 and 2,117.66

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Solution

The fourth proportional to 3,886.06, 5,362.76 and 2,117.66 is: 2,922.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.06 : 5,362.76 = 2,117.66 : x
  2. Step 2: Convert to fraction form
    3,886.06/5,362.76 = 2,117.66/x
  3. Step 3: Cross multiply
    3,886.06x = 5,362.76 × 2,117.66
  4. Step 4: Simplify right side
    3,886.06x = 11,356,491.75
  5. Step 5: Solve for x
    x = 11,356,491.75/3,886.06
  6. Step 6: Final answer
    x = 2,922.37

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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.