Home / 2,116.64-2,921.04-1,277.60

Finding the Fourth Proportional to 2,116.64, 2,921.04 and 1,277.60

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Solution

The fourth proportional to 2,116.64, 2,921.04 and 1,277.60 is: 1,763.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.64 : 2,921.04 = 1,277.60 : x
  2. Step 2: Convert to fraction form
    2,116.64/2,921.04 = 1,277.60/x
  3. Step 3: Cross multiply
    2,116.64x = 2,921.04 × 1,277.60
  4. Step 4: Simplify right side
    2,116.64x = 3,731,920.70
  5. Step 5: Solve for x
    x = 3,731,920.70/2,116.64
  6. Step 6: Final answer
    x = 1,763.13

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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.