Home / 1,894.20-2,613.06-1,631.76

Finding the Fourth Proportional to 1,894.20, 2,613.06 and 1,631.76

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Solution

The fourth proportional to 1,894.20, 2,613.06 and 1,631.76 is: 2,251.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.20 : 2,613.06 = 1,631.76 : x
  2. Step 2: Convert to fraction form
    1,894.20/2,613.06 = 1,631.76/x
  3. Step 3: Cross multiply
    1,894.20x = 2,613.06 × 1,631.76
  4. Step 4: Simplify right side
    1,894.20x = 4,263,886.79
  5. Step 5: Solve for x
    x = 4,263,886.79/1,894.20
  6. Step 6: Final answer
    x = 2,251.02

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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.