Home / 2,117.26-2,921.93-1,277.95

Finding the Fourth Proportional to 2,117.26, 2,921.93 and 1,277.95

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Solution

The fourth proportional to 2,117.26, 2,921.93 and 1,277.95 is: 1,763.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.26 : 2,921.93 = 1,277.95 : x
  2. Step 2: Convert to fraction form
    2,117.26/2,921.93 = 1,277.95/x
  3. Step 3: Cross multiply
    2,117.26x = 2,921.93 × 1,277.95
  4. Step 4: Simplify right side
    2,117.26x = 3,734,080.44
  5. Step 5: Solve for x
    x = 3,734,080.44/2,117.26
  6. Step 6: Final answer
    x = 1,763.64

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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.