Home / 3,159.86-4,738.35-1,621.94

Finding the Fourth Proportional to 3,159.86, 4,738.35 and 1,621.94

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Solution

The fourth proportional to 3,159.86, 4,738.35 and 1,621.94 is: 2,432.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.86 : 4,738.35 = 1,621.94 : x
  2. Step 2: Convert to fraction form
    3,159.86/4,738.35 = 1,621.94/x
  3. Step 3: Cross multiply
    3,159.86x = 4,738.35 × 1,621.94
  4. Step 4: Simplify right side
    3,159.86x = 7,685,319.40
  5. Step 5: Solve for x
    x = 7,685,319.40/3,159.86
  6. Step 6: Final answer
    x = 2,432.17

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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.