Home / 3,419.08-4,718.42-1,927.28

Finding the Fourth Proportional to 3,419.08, 4,718.42 and 1,927.28

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Solution

The fourth proportional to 3,419.08, 4,718.42 and 1,927.28 is: 2,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.08 : 4,718.42 = 1,927.28 : x
  2. Step 2: Convert to fraction form
    3,419.08/4,718.42 = 1,927.28/x
  3. Step 3: Cross multiply
    3,419.08x = 4,718.42 × 1,927.28
  4. Step 4: Simplify right side
    3,419.08x = 9,093,716.50
  5. Step 5: Solve for x
    x = 9,093,716.50/3,419.08
  6. Step 6: Final answer
    x = 2,659.70

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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.