Home / 3,643.28-5,465.52-1,177.80

Finding the Fourth Proportional to 3,643.28, 5,465.52 and 1,177.80

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Solution

The fourth proportional to 3,643.28, 5,465.52 and 1,177.80 is: 1,766.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.28 : 5,465.52 = 1,177.80 : x
  2. Step 2: Convert to fraction form
    3,643.28/5,465.52 = 1,177.80/x
  3. Step 3: Cross multiply
    3,643.28x = 5,465.52 × 1,177.80
  4. Step 4: Simplify right side
    3,643.28x = 6,437,283.57
  5. Step 5: Solve for x
    x = 6,437,283.57/3,643.28
  6. Step 6: Final answer
    x = 1,766.89

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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.