Home / 4,539.78-6,812.51-1,618.11

Finding the Fourth Proportional to 4,539.78, 6,812.51 and 1,618.11

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Solution

The fourth proportional to 4,539.78, 6,812.51 and 1,618.11 is: 2,428.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,539.78 : 6,812.51 = 1,618.11 : x
  2. Step 2: Convert to fraction form
    4,539.78/6,812.51 = 1,618.11/x
  3. Step 3: Cross multiply
    4,539.78x = 6,812.51 × 1,618.11
  4. Step 4: Simplify right side
    4,539.78x = 11,023,382.47
  5. Step 5: Solve for x
    x = 11,023,382.47/4,539.78
  6. Step 6: Final answer
    x = 2,428.18

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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.