Home / 3,975.52-5,963.28-1,378.72

Finding the Fourth Proportional to 3,975.52, 5,963.28 and 1,378.72

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Solution

The fourth proportional to 3,975.52, 5,963.28 and 1,378.72 is: 2,068.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.52 : 5,963.28 = 1,378.72 : x
  2. Step 2: Convert to fraction form
    3,975.52/5,963.28 = 1,378.72/x
  3. Step 3: Cross multiply
    3,975.52x = 5,963.28 × 1,378.72
  4. Step 4: Simplify right side
    3,975.52x = 8,221,693.40
  5. Step 5: Solve for x
    x = 8,221,693.40/3,975.52
  6. Step 6: Final answer
    x = 2,068.08

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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.