Home / 2,186.93-3,281.45-1,091.45

Finding the Fourth Proportional to 2,186.93, 3,281.45 and 1,091.45

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Solution

The fourth proportional to 2,186.93, 3,281.45 and 1,091.45 is: 1,637.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.93 : 3,281.45 = 1,091.45 : x
  2. Step 2: Convert to fraction form
    2,186.93/3,281.45 = 1,091.45/x
  3. Step 3: Cross multiply
    2,186.93x = 3,281.45 × 1,091.45
  4. Step 4: Simplify right side
    2,186.93x = 3,581,538.60
  5. Step 5: Solve for x
    x = 3,581,538.60/2,186.93
  6. Step 6: Final answer
    x = 1,637.70

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1.5x scale

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.