Home / 3,140.33-4,710.42-949.23

Finding the Fourth Proportional to 3,140.33, 4,710.42 and 949.23

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Solution

The fourth proportional to 3,140.33, 4,710.42 and 949.23 is: 1,423.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.33 : 4,710.42 = 949.23 : x
  2. Step 2: Convert to fraction form
    3,140.33/4,710.42 = 949.23/x
  3. Step 3: Cross multiply
    3,140.33x = 4,710.42 × 949.23
  4. Step 4: Simplify right side
    3,140.33x = 4,471,271.98
  5. Step 5: Solve for x
    x = 4,471,271.98/3,140.33
  6. Step 6: Final answer
    x = 1,423.82

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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.