Home / 3,159.23-4,738.71-1,211.32

Finding the Fourth Proportional to 3,159.23, 4,738.71 and 1,211.32

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Solution

The fourth proportional to 3,159.23, 4,738.71 and 1,211.32 is: 1,816.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.23 : 4,738.71 = 1,211.32 : x
  2. Step 2: Convert to fraction form
    3,159.23/4,738.71 = 1,211.32/x
  3. Step 3: Cross multiply
    3,159.23x = 4,738.71 × 1,211.32
  4. Step 4: Simplify right side
    3,159.23x = 5,740,070.50
  5. Step 5: Solve for x
    x = 5,740,070.50/3,159.23
  6. Step 6: Final answer
    x = 1,816.92

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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.