Home / 3,015.52-4,522.86-823.72

Finding the Fourth Proportional to 3,015.52, 4,522.86 and 823.72

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Solution

The fourth proportional to 3,015.52, 4,522.86 and 823.72 is: 1,235.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.52 : 4,522.86 = 823.72 : x
  2. Step 2: Convert to fraction form
    3,015.52/4,522.86 = 823.72/x
  3. Step 3: Cross multiply
    3,015.52x = 4,522.86 × 823.72
  4. Step 4: Simplify right side
    3,015.52x = 3,725,570.24
  5. Step 5: Solve for x
    x = 3,725,570.24/3,015.52
  6. Step 6: Final answer
    x = 1,235.47

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1.5x scale

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.