Home / 3,156.89-4,356.50-1,759.64

Finding the Fourth Proportional to 3,156.89, 4,356.50 and 1,759.64

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Solution

The fourth proportional to 3,156.89, 4,356.50 and 1,759.64 is: 2,428.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.89 : 4,356.50 = 1,759.64 : x
  2. Step 2: Convert to fraction form
    3,156.89/4,356.50 = 1,759.64/x
  3. Step 3: Cross multiply
    3,156.89x = 4,356.50 × 1,759.64
  4. Step 4: Simplify right side
    3,156.89x = 7,665,841.08
  5. Step 5: Solve for x
    x = 7,665,841.08/3,156.89
  6. Step 6: Final answer
    x = 2,428.29

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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.