Home / 2,659.20-4,004.27-1,970.75

Finding the Fourth Proportional to 2,659.20, 4,004.27 and 1,970.75

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Solution

The fourth proportional to 2,659.20, 4,004.27 and 1,970.75 is: 2,967.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.20 : 4,004.27 = 1,970.75 : x
  2. Step 2: Convert to fraction form
    2,659.20/4,004.27 = 1,970.75/x
  3. Step 3: Cross multiply
    2,659.20x = 4,004.27 × 1,970.75
  4. Step 4: Simplify right side
    2,659.20x = 7,891,385.23
  5. Step 5: Solve for x
    x = 7,891,385.23/2,659.20
  6. Step 6: Final answer
    x = 2,967.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.