Home / 2,117.83-3,177.66-1,840.51

Finding the Fourth Proportional to 2,117.83, 3,177.66 and 1,840.51

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Solution

The fourth proportional to 2,117.83, 3,177.66 and 1,840.51 is: 2,761.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.83 : 3,177.66 = 1,840.51 : x
  2. Step 2: Convert to fraction form
    2,117.83/3,177.66 = 1,840.51/x
  3. Step 3: Cross multiply
    2,117.83x = 3,177.66 × 1,840.51
  4. Step 4: Simplify right side
    2,117.83x = 5,848,515.01
  5. Step 5: Solve for x
    x = 5,848,515.01/2,117.83
  6. Step 6: Final answer
    x = 2,761.56

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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.