Home / 2,086.30-2,878.77-1,202.23

Finding the Fourth Proportional to 2,086.30, 2,878.77 and 1,202.23

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Solution

The fourth proportional to 2,086.30, 2,878.77 and 1,202.23 is: 1,658.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086.30 : 2,878.77 = 1,202.23 : x
  2. Step 2: Convert to fraction form
    2,086.30/2,878.77 = 1,202.23/x
  3. Step 3: Cross multiply
    2,086.30x = 2,878.77 × 1,202.23
  4. Step 4: Simplify right side
    2,086.30x = 3,460,943.66
  5. Step 5: Solve for x
    x = 3,460,943.66/2,086.30
  6. Step 6: Final answer
    x = 1,658.89

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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.