Home / 2,390.22-3,583.50-1,090.79

Finding the Fourth Proportional to 2,390.22, 3,583.50 and 1,090.79

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Solution

The fourth proportional to 2,390.22, 3,583.50 and 1,090.79 is: 1,635.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.22 : 3,583.50 = 1,090.79 : x
  2. Step 2: Convert to fraction form
    2,390.22/3,583.50 = 1,090.79/x
  3. Step 3: Cross multiply
    2,390.22x = 3,583.50 × 1,090.79
  4. Step 4: Simplify right side
    2,390.22x = 3,908,828.05
  5. Step 5: Solve for x
    x = 3,908,828.05/2,390.22
  6. Step 6: Final answer
    x = 1,635.34

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1.5x scale

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.