Home / 2,611.65-3,917.91-1,295.46

Finding the Fourth Proportional to 2,611.65, 3,917.91 and 1,295.46

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Solution

The fourth proportional to 2,611.65, 3,917.91 and 1,295.46 is: 1,943.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.65 : 3,917.91 = 1,295.46 : x
  2. Step 2: Convert to fraction form
    2,611.65/3,917.91 = 1,295.46/x
  3. Step 3: Cross multiply
    2,611.65x = 3,917.91 × 1,295.46
  4. Step 4: Simplify right side
    2,611.65x = 5,075,495.69
  5. Step 5: Solve for x
    x = 5,075,495.69/2,611.65
  6. Step 6: Final answer
    x = 1,943.41

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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.