Home / 3,162.96-4,364.63-1,818.15

Finding the Fourth Proportional to 3,162.96, 4,364.63 and 1,818.15

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Solution

The fourth proportional to 3,162.96, 4,364.63 and 1,818.15 is: 2,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.96 : 4,364.63 = 1,818.15 : x
  2. Step 2: Convert to fraction form
    3,162.96/4,364.63 = 1,818.15/x
  3. Step 3: Cross multiply
    3,162.96x = 4,364.63 × 1,818.15
  4. Step 4: Simplify right side
    3,162.96x = 7,935,542.94
  5. Step 5: Solve for x
    x = 7,935,542.94/3,162.96
  6. Step 6: Final answer
    x = 2,508.90

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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.