Home / 2,308.79-3,187.67-1,776.74

Finding the Fourth Proportional to 2,308.79, 3,187.67 and 1,776.74

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Solution

The fourth proportional to 2,308.79, 3,187.67 and 1,776.74 is: 2,453.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.79 : 3,187.67 = 1,776.74 : x
  2. Step 2: Convert to fraction form
    2,308.79/3,187.67 = 1,776.74/x
  3. Step 3: Cross multiply
    2,308.79x = 3,187.67 × 1,776.74
  4. Step 4: Simplify right side
    2,308.79x = 5,663,635.97
  5. Step 5: Solve for x
    x = 5,663,635.97/2,308.79
  6. Step 6: Final answer
    x = 2,453.07

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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.