Home / 2,166.39-2,986.09-1,693.45

Finding the Fourth Proportional to 2,166.39, 2,986.09 and 1,693.45

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Solution

The fourth proportional to 2,166.39, 2,986.09 and 1,693.45 is: 2,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.39 : 2,986.09 = 1,693.45 : x
  2. Step 2: Convert to fraction form
    2,166.39/2,986.09 = 1,693.45/x
  3. Step 3: Cross multiply
    2,166.39x = 2,986.09 × 1,693.45
  4. Step 4: Simplify right side
    2,166.39x = 5,056,770.71
  5. Step 5: Solve for x
    x = 5,056,770.71/2,166.39
  6. Step 6: Final answer
    x = 2,334.20

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Double scale
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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.