Home / 2,853.60-4,276.80-2,083.20

Finding the Fourth Proportional to 2,853.60, 4,276.80 and 2,083.20

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Solution

The fourth proportional to 2,853.60, 4,276.80 and 2,083.20 is: 3,122.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.60 : 4,276.80 = 2,083.20 : x
  2. Step 2: Convert to fraction form
    2,853.60/4,276.80 = 2,083.20/x
  3. Step 3: Cross multiply
    2,853.60x = 4,276.80 × 2,083.20
  4. Step 4: Simplify right side
    2,853.60x = 8,909,429.76
  5. Step 5: Solve for x
    x = 8,909,429.76/2,853.60
  6. Step 6: Final answer
    x = 3,122.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.