Home / 3,428.80-4,731.73-1,856.89

Finding the Fourth Proportional to 3,428.80, 4,731.73 and 1,856.89

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Solution

The fourth proportional to 3,428.80, 4,731.73 and 1,856.89 is: 2,562.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.80 : 4,731.73 = 1,856.89 : x
  2. Step 2: Convert to fraction form
    3,428.80/4,731.73 = 1,856.89/x
  3. Step 3: Cross multiply
    3,428.80x = 4,731.73 × 1,856.89
  4. Step 4: Simplify right side
    3,428.80x = 8,786,302.12
  5. Step 5: Solve for x
    x = 8,786,302.12/3,428.80
  6. Step 6: Final answer
    x = 2,562.50

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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.