Home / 2,239.17-3,090.33-1,355.28

Finding the Fourth Proportional to 2,239.17, 3,090.33 and 1,355.28

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Solution

The fourth proportional to 2,239.17, 3,090.33 and 1,355.28 is: 1,870.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.17 : 3,090.33 = 1,355.28 : x
  2. Step 2: Convert to fraction form
    2,239.17/3,090.33 = 1,355.28/x
  3. Step 3: Cross multiply
    2,239.17x = 3,090.33 × 1,355.28
  4. Step 4: Simplify right side
    2,239.17x = 4,188,262.44
  5. Step 5: Solve for x
    x = 4,188,262.44/2,239.17
  6. Step 6: Final answer
    x = 1,870.45

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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.