Home / 2,942.57-4,415.47-1,789.13

Finding the Fourth Proportional to 2,942.57, 4,415.47 and 1,789.13

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Solution

The fourth proportional to 2,942.57, 4,415.47 and 1,789.13 is: 2,684.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.57 : 4,415.47 = 1,789.13 : x
  2. Step 2: Convert to fraction form
    2,942.57/4,415.47 = 1,789.13/x
  3. Step 3: Cross multiply
    2,942.57x = 4,415.47 × 1,789.13
  4. Step 4: Simplify right side
    2,942.57x = 7,899,823.29
  5. Step 5: Solve for x
    x = 7,899,823.29/2,942.57
  6. Step 6: Final answer
    x = 2,684.67

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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.