Home / 1,090.20-1,635.29-473.82

Finding the Fourth Proportional to 1,090.20, 1,635.29 and 473.82

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Solution

The fourth proportional to 1,090.20, 1,635.29 and 473.82 is: 710.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090.20 : 1,635.29 = 473.82 : x
  2. Step 2: Convert to fraction form
    1,090.20/1,635.29 = 473.82/x
  3. Step 3: Cross multiply
    1,090.20x = 1,635.29 × 473.82
  4. Step 4: Simplify right side
    1,090.20x = 774,834.29
  5. Step 5: Solve for x
    x = 774,834.29/1,090.20
  6. Step 6: Final answer
    x = 710.73

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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.