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Finding the Fourth Proportional to 2,779.73, 3,838.03 and 1,718.94

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Solution

The fourth proportional to 2,779.73, 3,838.03 and 1,718.94 is: 2,373.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.73 : 3,838.03 = 1,718.94 : x
  2. Step 2: Convert to fraction form
    2,779.73/3,838.03 = 1,718.94/x
  3. Step 3: Cross multiply
    2,779.73x = 3,838.03 × 1,718.94
  4. Step 4: Simplify right side
    2,779.73x = 6,597,343.29
  5. Step 5: Solve for x
    x = 6,597,343.29/2,779.73
  6. Step 6: Final answer
    x = 2,373.38

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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.