Home / 2,090.72-2,885.44-1,159.28

Finding the Fourth Proportional to 2,090.72, 2,885.44 and 1,159.28

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Solution

The fourth proportional to 2,090.72, 2,885.44 and 1,159.28 is: 1,599.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.72 : 2,885.44 = 1,159.28 : x
  2. Step 2: Convert to fraction form
    2,090.72/2,885.44 = 1,159.28/x
  3. Step 3: Cross multiply
    2,090.72x = 2,885.44 × 1,159.28
  4. Step 4: Simplify right side
    2,090.72x = 3,345,032.88
  5. Step 5: Solve for x
    x = 3,345,032.88/2,090.72
  6. Step 6: Final answer
    x = 1,599.94

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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.