Home / 3,153.86-4,351.20-1,826.84

Finding the Fourth Proportional to 3,153.86, 4,351.20 and 1,826.84

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Solution

The fourth proportional to 3,153.86, 4,351.20 and 1,826.84 is: 2,520.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.86 : 4,351.20 = 1,826.84 : x
  2. Step 2: Convert to fraction form
    3,153.86/4,351.20 = 1,826.84/x
  3. Step 3: Cross multiply
    3,153.86x = 4,351.20 × 1,826.84
  4. Step 4: Simplify right side
    3,153.86x = 7,948,946.21
  5. Step 5: Solve for x
    x = 7,948,946.21/3,153.86
  6. Step 6: Final answer
    x = 2,520.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.