Home / 2,390.76-3,584.64-1,090.56

Finding the Fourth Proportional to 2,390.76, 3,584.64 and 1,090.56

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Solution

The fourth proportional to 2,390.76, 3,584.64 and 1,090.56 is: 1,635.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.76 : 3,584.64 = 1,090.56 : x
  2. Step 2: Convert to fraction form
    2,390.76/3,584.64 = 1,090.56/x
  3. Step 3: Cross multiply
    2,390.76x = 3,584.64 × 1,090.56
  4. Step 4: Simplify right side
    2,390.76x = 3,909,265.00
  5. Step 5: Solve for x
    x = 3,909,265.00/2,390.76
  6. Step 6: Final answer
    x = 1,635.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.