Home / 3,529.78-4,871.30-2,017.81

Finding the Fourth Proportional to 3,529.78, 4,871.30 and 2,017.81

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Solution

The fourth proportional to 3,529.78, 4,871.30 and 2,017.81 is: 2,784.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.78 : 4,871.30 = 2,017.81 : x
  2. Step 2: Convert to fraction form
    3,529.78/4,871.30 = 2,017.81/x
  3. Step 3: Cross multiply
    3,529.78x = 4,871.30 × 2,017.81
  4. Step 4: Simplify right side
    3,529.78x = 9,829,357.85
  5. Step 5: Solve for x
    x = 9,829,357.85/3,529.78
  6. Step 6: Final answer
    x = 2,784.69

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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.