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Finding the Fourth Proportional to 3,419.58, 4,718.79 and 1,927.29

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Solution

The fourth proportional to 3,419.58, 4,718.79 and 1,927.29 is: 2,659.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.58 : 4,718.79 = 1,927.29 : x
  2. Step 2: Convert to fraction form
    3,419.58/4,718.79 = 1,927.29/x
  3. Step 3: Cross multiply
    3,419.58x = 4,718.79 × 1,927.29
  4. Step 4: Simplify right side
    3,419.58x = 9,094,502.61
  5. Step 5: Solve for x
    x = 9,094,502.61/3,419.58
  6. Step 6: Final answer
    x = 2,659.54

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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.