Home / 2,090.29-2,884.48-1,145.90

Finding the Fourth Proportional to 2,090.29, 2,884.48 and 1,145.90

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Solution

The fourth proportional to 2,090.29, 2,884.48 and 1,145.90 is: 1,581.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.29 : 2,884.48 = 1,145.90 : x
  2. Step 2: Convert to fraction form
    2,090.29/2,884.48 = 1,145.90/x
  3. Step 3: Cross multiply
    2,090.29x = 2,884.48 × 1,145.90
  4. Step 4: Simplify right side
    2,090.29x = 3,305,325.63
  5. Step 5: Solve for x
    x = 3,305,325.63/2,090.29
  6. Step 6: Final answer
    x = 1,581.28

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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.