Home / 2,089.60-2,883.96-1,205.23

Finding the Fourth Proportional to 2,089.60, 2,883.96 and 1,205.23

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Solution

The fourth proportional to 2,089.60, 2,883.96 and 1,205.23 is: 1,663.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089.60 : 2,883.96 = 1,205.23 : x
  2. Step 2: Convert to fraction form
    2,089.60/2,883.96 = 1,205.23/x
  3. Step 3: Cross multiply
    2,089.60x = 2,883.96 × 1,205.23
  4. Step 4: Simplify right side
    2,089.60x = 3,475,829.08
  5. Step 5: Solve for x
    x = 3,475,829.08/2,089.60
  6. Step 6: Final answer
    x = 1,663.39

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Half scale
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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.