Home / 2,090.59-2,882.67-1,427.80

Finding the Fourth Proportional to 2,090.59, 2,882.67 and 1,427.80

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Solution

The fourth proportional to 2,090.59, 2,882.67 and 1,427.80 is: 1,968.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.59 : 2,882.67 = 1,427.80 : x
  2. Step 2: Convert to fraction form
    2,090.59/2,882.67 = 1,427.80/x
  3. Step 3: Cross multiply
    2,090.59x = 2,882.67 × 1,427.80
  4. Step 4: Simplify right side
    2,090.59x = 4,115,876.23
  5. Step 5: Solve for x
    x = 4,115,876.23/2,090.59
  6. Step 6: Final answer
    x = 1,968.76

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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.