Home / 1,518.99-2,090.85-1,098.66

Finding the Fourth Proportional to 1,518.99, 2,090.85 and 1,098.66

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Solution

The fourth proportional to 1,518.99, 2,090.85 and 1,098.66 is: 1,512.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.99 : 2,090.85 = 1,098.66 : x
  2. Step 2: Convert to fraction form
    1,518.99/2,090.85 = 1,098.66/x
  3. Step 3: Cross multiply
    1,518.99x = 2,090.85 × 1,098.66
  4. Step 4: Simplify right side
    1,518.99x = 2,297,133.26
  5. Step 5: Solve for x
    x = 2,297,133.26/1,518.99
  6. Step 6: Final answer
    x = 1,512.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.