Home / 9,159.65-13,738.71-2,919.41

Finding the Fourth Proportional to 9,159.65, 13,738.71 and 2,919.41

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Solution

The fourth proportional to 9,159.65, 13,738.71 and 2,919.41 is: 4,378.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.65 : 13,738.71 = 2,919.41 : x
  2. Step 2: Convert to fraction form
    9,159.65/13,738.71 = 2,919.41/x
  3. Step 3: Cross multiply
    9,159.65x = 13,738.71 × 2,919.41
  4. Step 4: Simplify right side
    9,159.65x = 40,108,927.36
  5. Step 5: Solve for x
    x = 40,108,927.36/9,159.65
  6. Step 6: Final answer
    x = 4,378.87

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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.