Home / 4,117.95-5,687.64-3,121.02

Finding the Fourth Proportional to 4,117.95, 5,687.64 and 3,121.02

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Solution

The fourth proportional to 4,117.95, 5,687.64 and 3,121.02 is: 4,310.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,117.95 : 5,687.64 = 3,121.02 : x
  2. Step 2: Convert to fraction form
    4,117.95/5,687.64 = 3,121.02/x
  3. Step 3: Cross multiply
    4,117.95x = 5,687.64 × 3,121.02
  4. Step 4: Simplify right side
    4,117.95x = 17,751,238.19
  5. Step 5: Solve for x
    x = 17,751,238.19/4,117.95
  6. Step 6: Final answer
    x = 4,310.70

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1.5x scale

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.