Home / 3,090.45-4,635.54-899.13

Finding the Fourth Proportional to 3,090.45, 4,635.54 and 899.13

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Solution

The fourth proportional to 3,090.45, 4,635.54 and 899.13 is: 1,348.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.45 : 4,635.54 = 899.13 : x
  2. Step 2: Convert to fraction form
    3,090.45/4,635.54 = 899.13/x
  3. Step 3: Cross multiply
    3,090.45x = 4,635.54 × 899.13
  4. Step 4: Simplify right side
    3,090.45x = 4,167,953.08
  5. Step 5: Solve for x
    x = 4,167,953.08/3,090.45
  6. Step 6: Final answer
    x = 1,348.66

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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.