Home / 2,135.25-2,946.69-1,203.75

Finding the Fourth Proportional to 2,135.25, 2,946.69 and 1,203.75

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Solution

The fourth proportional to 2,135.25, 2,946.69 and 1,203.75 is: 1,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.25 : 2,946.69 = 1,203.75 : x
  2. Step 2: Convert to fraction form
    2,135.25/2,946.69 = 1,203.75/x
  3. Step 3: Cross multiply
    2,135.25x = 2,946.69 × 1,203.75
  4. Step 4: Simplify right side
    2,135.25x = 3,547,078.09
  5. Step 5: Solve for x
    x = 3,547,078.09/2,135.25
  6. Step 6: Final answer
    x = 1,661.20

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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.