Home / 1,112.64-1,669.68-1,024.48

Finding the Fourth Proportional to 1,112.64, 1,669.68 and 1,024.48

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Solution

The fourth proportional to 1,112.64, 1,669.68 and 1,024.48 is: 1,537.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.64 : 1,669.68 = 1,024.48 : x
  2. Step 2: Convert to fraction form
    1,112.64/1,669.68 = 1,024.48/x
  3. Step 3: Cross multiply
    1,112.64x = 1,669.68 × 1,024.48
  4. Step 4: Simplify right side
    1,112.64x = 1,710,553.77
  5. Step 5: Solve for x
    x = 1,710,553.77/1,112.64
  6. Step 6: Final answer
    x = 1,537.38

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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.