Home / 1,908.20-2,860.68-1,041.68

Finding the Fourth Proportional to 1,908.20, 2,860.68 and 1,041.68

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Solution

The fourth proportional to 1,908.20, 2,860.68 and 1,041.68 is: 1,561.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.20 : 2,860.68 = 1,041.68 : x
  2. Step 2: Convert to fraction form
    1,908.20/2,860.68 = 1,041.68/x
  3. Step 3: Cross multiply
    1,908.20x = 2,860.68 × 1,041.68
  4. Step 4: Simplify right side
    1,908.20x = 2,979,913.14
  5. Step 5: Solve for x
    x = 2,979,913.14/1,908.20
  6. Step 6: Final answer
    x = 1,561.64

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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.