Home / 1,917.42-2,862.14-1,645.26

Finding the Fourth Proportional to 1,917.42, 2,862.14 and 1,645.26

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Solution

The fourth proportional to 1,917.42, 2,862.14 and 1,645.26 is: 2,455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.42 : 2,862.14 = 1,645.26 : x
  2. Step 2: Convert to fraction form
    1,917.42/2,862.14 = 1,645.26/x
  3. Step 3: Cross multiply
    1,917.42x = 2,862.14 × 1,645.26
  4. Step 4: Simplify right side
    1,917.42x = 4,708,956.23
  5. Step 5: Solve for x
    x = 4,708,956.23/1,917.42
  6. Step 6: Final answer
    x = 2,455.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.