Home / 3,089.70-4,635.74-1,857.99

Finding the Fourth Proportional to 3,089.70, 4,635.74 and 1,857.99

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Solution

The fourth proportional to 3,089.70, 4,635.74 and 1,857.99 is: 2,787.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.70 : 4,635.74 = 1,857.99 : x
  2. Step 2: Convert to fraction form
    3,089.70/4,635.74 = 1,857.99/x
  3. Step 3: Cross multiply
    3,089.70x = 4,635.74 × 1,857.99
  4. Step 4: Simplify right side
    3,089.70x = 8,613,158.56
  5. Step 5: Solve for x
    x = 8,613,158.56/3,089.70
  6. Step 6: Final answer
    x = 2,787.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.