Home / 2,515.68-3,471.52-1,396.60

Finding the Fourth Proportional to 2,515.68, 3,471.52 and 1,396.60

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Solution

The fourth proportional to 2,515.68, 3,471.52 and 1,396.60 is: 1,927.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.68 : 3,471.52 = 1,396.60 : x
  2. Step 2: Convert to fraction form
    2,515.68/3,471.52 = 1,396.60/x
  3. Step 3: Cross multiply
    2,515.68x = 3,471.52 × 1,396.60
  4. Step 4: Simplify right side
    2,515.68x = 4,848,324.83
  5. Step 5: Solve for x
    x = 4,848,324.83/2,515.68
  6. Step 6: Final answer
    x = 1,927.24

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1.5x scale

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.