Home / 4,386.75-6,581.22-1,308.75

Finding the Fourth Proportional to 4,386.75, 6,581.22 and 1,308.75

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Solution

The fourth proportional to 4,386.75, 6,581.22 and 1,308.75 is: 1,963.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,386.75 : 6,581.22 = 1,308.75 : x
  2. Step 2: Convert to fraction form
    4,386.75/6,581.22 = 1,308.75/x
  3. Step 3: Cross multiply
    4,386.75x = 6,581.22 × 1,308.75
  4. Step 4: Simplify right side
    4,386.75x = 8,613,171.68
  5. Step 5: Solve for x
    x = 8,613,171.68/4,386.75
  6. Step 6: Final answer
    x = 1,963.45

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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.