Home / 2,515.46-3,471.36-1,396.51

Finding the Fourth Proportional to 2,515.46, 3,471.36 and 1,396.51

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Solution

The fourth proportional to 2,515.46, 3,471.36 and 1,396.51 is: 1,927.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.46 : 3,471.36 = 1,396.51 : x
  2. Step 2: Convert to fraction form
    2,515.46/3,471.36 = 1,396.51/x
  3. Step 3: Cross multiply
    2,515.46x = 3,471.36 × 1,396.51
  4. Step 4: Simplify right side
    2,515.46x = 4,847,782.89
  5. Step 5: Solve for x
    x = 4,847,782.89/2,515.46
  6. Step 6: Final answer
    x = 1,927.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.