Home / 3,618.79-5,428.18-1,669.93

Finding the Fourth Proportional to 3,618.79, 5,428.18 and 1,669.93

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Solution

The fourth proportional to 3,618.79, 5,428.18 and 1,669.93 is: 2,504.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.79 : 5,428.18 = 1,669.93 : x
  2. Step 2: Convert to fraction form
    3,618.79/5,428.18 = 1,669.93/x
  3. Step 3: Cross multiply
    3,618.79x = 5,428.18 × 1,669.93
  4. Step 4: Simplify right side
    3,618.79x = 9,064,669.14
  5. Step 5: Solve for x
    x = 9,064,669.14/3,618.79
  6. Step 6: Final answer
    x = 2,504.89

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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.