Home / 2,090.79-2,885.36-1,159.29

Finding the Fourth Proportional to 2,090.79, 2,885.36 and 1,159.29

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Solution

The fourth proportional to 2,090.79, 2,885.36 and 1,159.29 is: 1,599.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.79 : 2,885.36 = 1,159.29 : x
  2. Step 2: Convert to fraction form
    2,090.79/2,885.36 = 1,159.29/x
  3. Step 3: Cross multiply
    2,090.79x = 2,885.36 × 1,159.29
  4. Step 4: Simplify right side
    2,090.79x = 3,344,963.20
  5. Step 5: Solve for x
    x = 3,344,963.20/2,090.79
  6. Step 6: Final answer
    x = 1,599.86

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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.