Home / 1,583.74-2,186.58-1,086.22

Finding the Fourth Proportional to 1,583.74, 2,186.58 and 1,086.22

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Solution

The fourth proportional to 1,583.74, 2,186.58 and 1,086.22 is: 1,499.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.74 : 2,186.58 = 1,086.22 : x
  2. Step 2: Convert to fraction form
    1,583.74/2,186.58 = 1,086.22/x
  3. Step 3: Cross multiply
    1,583.74x = 2,186.58 × 1,086.22
  4. Step 4: Simplify right side
    1,583.74x = 2,375,106.93
  5. Step 5: Solve for x
    x = 2,375,106.93/1,583.74
  6. Step 6: Final answer
    x = 1,499.68

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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.