Home / 1,682.11-2,319.83-1,177.70

Finding the Fourth Proportional to 1,682.11, 2,319.83 and 1,177.70

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Solution

The fourth proportional to 1,682.11, 2,319.83 and 1,177.70 is: 1,624.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682.11 : 2,319.83 = 1,177.70 : x
  2. Step 2: Convert to fraction form
    1,682.11/2,319.83 = 1,177.70/x
  3. Step 3: Cross multiply
    1,682.11x = 2,319.83 × 1,177.70
  4. Step 4: Simplify right side
    1,682.11x = 2,732,063.77
  5. Step 5: Solve for x
    x = 2,732,063.77/1,682.11
  6. Step 6: Final answer
    x = 1,624.19

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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.