Home / 3,095.60-4,272.50-1,976.90

Finding the Fourth Proportional to 3,095.60, 4,272.50 and 1,976.90

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Solution

The fourth proportional to 3,095.60, 4,272.50 and 1,976.90 is: 2,728.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,095.60 : 4,272.50 = 1,976.90 : x
  2. Step 2: Convert to fraction form
    3,095.60/4,272.50 = 1,976.90/x
  3. Step 3: Cross multiply
    3,095.60x = 4,272.50 × 1,976.90
  4. Step 4: Simplify right side
    3,095.60x = 8,446,274.00
  5. Step 5: Solve for x
    x = 8,446,274.00/3,095.60
  6. Step 6: Final answer
    x = 2,728.48

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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.