Home / 1,518.12-2,094.25-1,021.48

Finding the Fourth Proportional to 1,518.12, 2,094.25 and 1,021.48

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Solution

The fourth proportional to 1,518.12, 2,094.25 and 1,021.48 is: 1,409.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.12 : 2,094.25 = 1,021.48 : x
  2. Step 2: Convert to fraction form
    1,518.12/2,094.25 = 1,021.48/x
  3. Step 3: Cross multiply
    1,518.12x = 2,094.25 × 1,021.48
  4. Step 4: Simplify right side
    1,518.12x = 2,139,234.49
  5. Step 5: Solve for x
    x = 2,139,234.49/1,518.12
  6. Step 6: Final answer
    x = 1,409.13

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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.