Home / 3,078.51-4,617.76-1,434.16

Finding the Fourth Proportional to 3,078.51, 4,617.76 and 1,434.16

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Solution

The fourth proportional to 3,078.51, 4,617.76 and 1,434.16 is: 2,151.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.51 : 4,617.76 = 1,434.16 : x
  2. Step 2: Convert to fraction form
    3,078.51/4,617.76 = 1,434.16/x
  3. Step 3: Cross multiply
    3,078.51x = 4,617.76 × 1,434.16
  4. Step 4: Simplify right side
    3,078.51x = 6,622,585.58
  5. Step 5: Solve for x
    x = 6,622,585.58/3,078.51
  6. Step 6: Final answer
    x = 2,151.23

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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.