Home / 1,190.62-1,639.09-1,024.16

Finding the Fourth Proportional to 1,190.62, 1,639.09 and 1,024.16

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Solution

The fourth proportional to 1,190.62, 1,639.09 and 1,024.16 is: 1,409.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.62 : 1,639.09 = 1,024.16 : x
  2. Step 2: Convert to fraction form
    1,190.62/1,639.09 = 1,024.16/x
  3. Step 3: Cross multiply
    1,190.62x = 1,639.09 × 1,024.16
  4. Step 4: Simplify right side
    1,190.62x = 1,678,691.95
  5. Step 5: Solve for x
    x = 1,678,691.95/1,190.62
  6. Step 6: Final answer
    x = 1,409.93

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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.