Home / 3,151.77-4,350.20-1,826.21

Finding the Fourth Proportional to 3,151.77, 4,350.20 and 1,826.21

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Solution

The fourth proportional to 3,151.77, 4,350.20 and 1,826.21 is: 2,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.77 : 4,350.20 = 1,826.21 : x
  2. Step 2: Convert to fraction form
    3,151.77/4,350.20 = 1,826.21/x
  3. Step 3: Cross multiply
    3,151.77x = 4,350.20 × 1,826.21
  4. Step 4: Simplify right side
    3,151.77x = 7,944,347.86
  5. Step 5: Solve for x
    x = 7,944,347.86/3,151.77
  6. Step 6: Final answer
    x = 2,520.60

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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.