Home / 1,917.36-2,873.20-1,095.88

Finding the Fourth Proportional to 1,917.36, 2,873.20 and 1,095.88

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Solution

The fourth proportional to 1,917.36, 2,873.20 and 1,095.88 is: 1,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.36 : 2,873.20 = 1,095.88 : x
  2. Step 2: Convert to fraction form
    1,917.36/2,873.20 = 1,095.88/x
  3. Step 3: Cross multiply
    1,917.36x = 2,873.20 × 1,095.88
  4. Step 4: Simplify right side
    1,917.36x = 3,148,682.42
  5. Step 5: Solve for x
    x = 3,148,682.42/1,917.36
  6. Step 6: Final answer
    x = 1,642.20

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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.