Home / 1,619.81-2,236.14-1,098.57

Finding the Fourth Proportional to 1,619.81, 2,236.14 and 1,098.57

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Solution

The fourth proportional to 1,619.81, 2,236.14 and 1,098.57 is: 1,516.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.81 : 2,236.14 = 1,098.57 : x
  2. Step 2: Convert to fraction form
    1,619.81/2,236.14 = 1,098.57/x
  3. Step 3: Cross multiply
    1,619.81x = 2,236.14 × 1,098.57
  4. Step 4: Simplify right side
    1,619.81x = 2,456,556.32
  5. Step 5: Solve for x
    x = 2,456,556.32/1,619.81
  6. Step 6: Final answer
    x = 1,516.57

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1.5x scale

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.