Home / 2,530.80-3,781.60-1,934.54

Finding the Fourth Proportional to 2,530.80, 3,781.60 and 1,934.54

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Solution

The fourth proportional to 2,530.80, 3,781.60 and 1,934.54 is: 2,890.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,530.80 : 3,781.60 = 1,934.54 : x
  2. Step 2: Convert to fraction form
    2,530.80/3,781.60 = 1,934.54/x
  3. Step 3: Cross multiply
    2,530.80x = 3,781.60 × 1,934.54
  4. Step 4: Simplify right side
    2,530.80x = 7,315,656.46
  5. Step 5: Solve for x
    x = 7,315,656.46/2,530.80
  6. Step 6: Final answer
    x = 2,890.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.