Home / 1,085.62-1,629.87-1,048.18

Finding the Fourth Proportional to 1,085.62, 1,629.87 and 1,048.18

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Solution

The fourth proportional to 1,085.62, 1,629.87 and 1,048.18 is: 1,573.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085.62 : 1,629.87 = 1,048.18 : x
  2. Step 2: Convert to fraction form
    1,085.62/1,629.87 = 1,048.18/x
  3. Step 3: Cross multiply
    1,085.62x = 1,629.87 × 1,048.18
  4. Step 4: Simplify right side
    1,085.62x = 1,708,397.14
  5. Step 5: Solve for x
    x = 1,708,397.14/1,085.62
  6. Step 6: Final answer
    x = 1,573.66

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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.