Home / 2,684.76-4,029.32-1,386.60

Finding the Fourth Proportional to 2,684.76, 4,029.32 and 1,386.60

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Solution

The fourth proportional to 2,684.76, 4,029.32 and 1,386.60 is: 2,081.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,684.76 : 4,029.32 = 1,386.60 : x
  2. Step 2: Convert to fraction form
    2,684.76/4,029.32 = 1,386.60/x
  3. Step 3: Cross multiply
    2,684.76x = 4,029.32 × 1,386.60
  4. Step 4: Simplify right side
    2,684.76x = 5,587,055.11
  5. Step 5: Solve for x
    x = 5,587,055.11/2,684.76
  6. Step 6: Final answer
    x = 2,081.03

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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.