Home / 2,077.11-2,863.65-1,721.70

Finding the Fourth Proportional to 2,077.11, 2,863.65 and 1,721.70

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Solution

The fourth proportional to 2,077.11, 2,863.65 and 1,721.70 is: 2,373.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077.11 : 2,863.65 = 1,721.70 : x
  2. Step 2: Convert to fraction form
    2,077.11/2,863.65 = 1,721.70/x
  3. Step 3: Cross multiply
    2,077.11x = 2,863.65 × 1,721.70
  4. Step 4: Simplify right side
    2,077.11x = 4,930,346.21
  5. Step 5: Solve for x
    x = 4,930,346.21/2,077.11
  6. Step 6: Final answer
    x = 2,373.66

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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.