Home / 6,642.19-9,166.05-3,657.99

Finding the Fourth Proportional to 6,642.19, 9,166.05 and 3,657.99

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Solution

The fourth proportional to 6,642.19, 9,166.05 and 3,657.99 is: 5,047.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.19 : 9,166.05 = 3,657.99 : x
  2. Step 2: Convert to fraction form
    6,642.19/9,166.05 = 3,657.99/x
  3. Step 3: Cross multiply
    6,642.19x = 9,166.05 × 3,657.99
  4. Step 4: Simplify right side
    6,642.19x = 33,529,305.52
  5. Step 5: Solve for x
    x = 33,529,305.52/6,642.19
  6. Step 6: Final answer
    x = 5,047.93

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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.