Home / 3,133.24-4,696.78-1,281.80

Finding the Fourth Proportional to 3,133.24, 4,696.78 and 1,281.80

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Solution

The fourth proportional to 3,133.24, 4,696.78 and 1,281.80 is: 1,921.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.24 : 4,696.78 = 1,281.80 : x
  2. Step 2: Convert to fraction form
    3,133.24/4,696.78 = 1,281.80/x
  3. Step 3: Cross multiply
    3,133.24x = 4,696.78 × 1,281.80
  4. Step 4: Simplify right side
    3,133.24x = 6,020,332.60
  5. Step 5: Solve for x
    x = 6,020,332.60/3,133.24
  6. Step 6: Final answer
    x = 1,921.44

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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.