Home / 2,618.91-3,928.93-1,303.36

Finding the Fourth Proportional to 2,618.91, 3,928.93 and 1,303.36

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Solution

The fourth proportional to 2,618.91, 3,928.93 and 1,303.36 is: 1,955.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.91 : 3,928.93 = 1,303.36 : x
  2. Step 2: Convert to fraction form
    2,618.91/3,928.93 = 1,303.36/x
  3. Step 3: Cross multiply
    2,618.91x = 3,928.93 × 1,303.36
  4. Step 4: Simplify right side
    2,618.91x = 5,120,797.12
  5. Step 5: Solve for x
    x = 5,120,797.12/2,618.91
  6. Step 6: Final answer
    x = 1,955.32

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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.