Home / 3,386.16-5,078.75-1,631.07

Finding the Fourth Proportional to 3,386.16, 5,078.75 and 1,631.07

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Solution

The fourth proportional to 3,386.16, 5,078.75 and 1,631.07 is: 2,446.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.16 : 5,078.75 = 1,631.07 : x
  2. Step 2: Convert to fraction form
    3,386.16/5,078.75 = 1,631.07/x
  3. Step 3: Cross multiply
    3,386.16x = 5,078.75 × 1,631.07
  4. Step 4: Simplify right side
    3,386.16x = 8,283,788.61
  5. Step 5: Solve for x
    x = 8,283,788.61/3,386.16
  6. Step 6: Final answer
    x = 2,446.37

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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.