Home / 1,090.06-1,635.29-360.15

Finding the Fourth Proportional to 1,090.06, 1,635.29 and 360.15

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Solution

The fourth proportional to 1,090.06, 1,635.29 and 360.15 is: 540.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090.06 : 1,635.29 = 360.15 : x
  2. Step 2: Convert to fraction form
    1,090.06/1,635.29 = 360.15/x
  3. Step 3: Cross multiply
    1,090.06x = 1,635.29 × 360.15
  4. Step 4: Simplify right side
    1,090.06x = 588,943.11
  5. Step 5: Solve for x
    x = 588,943.11/1,090.06
  6. Step 6: Final answer
    x = 540.29

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Double scale
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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.