Home / 1,917.93-2,646.65-1,173.14

Finding the Fourth Proportional to 1,917.93, 2,646.65 and 1,173.14

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Solution

The fourth proportional to 1,917.93, 2,646.65 and 1,173.14 is: 1,618.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.93 : 2,646.65 = 1,173.14 : x
  2. Step 2: Convert to fraction form
    1,917.93/2,646.65 = 1,173.14/x
  3. Step 3: Cross multiply
    1,917.93x = 2,646.65 × 1,173.14
  4. Step 4: Simplify right side
    1,917.93x = 3,104,871.88
  5. Step 5: Solve for x
    x = 3,104,871.88/1,917.93
  6. Step 6: Final answer
    x = 1,618.87

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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.