Home / 2,963.26-4,090.74-1,970.20

Finding the Fourth Proportional to 2,963.26, 4,090.74 and 1,970.20

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Solution

The fourth proportional to 2,963.26, 4,090.74 and 1,970.20 is: 2,719.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,963.26 : 4,090.74 = 1,970.20 : x
  2. Step 2: Convert to fraction form
    2,963.26/4,090.74 = 1,970.20/x
  3. Step 3: Cross multiply
    2,963.26x = 4,090.74 × 1,970.20
  4. Step 4: Simplify right side
    2,963.26x = 8,059,575.95
  5. Step 5: Solve for x
    x = 8,059,575.95/2,963.26
  6. Step 6: Final answer
    x = 2,719.83

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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.