Home / 2,386.11-3,291.19-1,679.46

Finding the Fourth Proportional to 2,386.11, 3,291.19 and 1,679.46

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Solution

The fourth proportional to 2,386.11, 3,291.19 and 1,679.46 is: 2,316.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.11 : 3,291.19 = 1,679.46 : x
  2. Step 2: Convert to fraction form
    2,386.11/3,291.19 = 1,679.46/x
  3. Step 3: Cross multiply
    2,386.11x = 3,291.19 × 1,679.46
  4. Step 4: Simplify right side
    2,386.11x = 5,527,421.96
  5. Step 5: Solve for x
    x = 5,527,421.96/2,386.11
  6. Step 6: Final answer
    x = 2,316.50

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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.