Home / 2,515.85-3,471.57-1,396.52

Finding the Fourth Proportional to 2,515.85, 3,471.57 and 1,396.52

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Solution

The fourth proportional to 2,515.85, 3,471.57 and 1,396.52 is: 1,927.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.85 : 3,471.57 = 1,396.52 : x
  2. Step 2: Convert to fraction form
    2,515.85/3,471.57 = 1,396.52/x
  3. Step 3: Cross multiply
    2,515.85x = 3,471.57 × 1,396.52
  4. Step 4: Simplify right side
    2,515.85x = 4,848,099.58
  5. Step 5: Solve for x
    x = 4,848,099.58/2,515.85
  6. Step 6: Final answer
    x = 1,927.03

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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.