Home / 2,515.94-3,471.98-1,396.84

Finding the Fourth Proportional to 2,515.94, 3,471.98 and 1,396.84

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Solution

The fourth proportional to 2,515.94, 3,471.98 and 1,396.84 is: 1,927.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.94 : 3,471.98 = 1,396.84 : x
  2. Step 2: Convert to fraction form
    2,515.94/3,471.98 = 1,396.84/x
  3. Step 3: Cross multiply
    2,515.94x = 3,471.98 × 1,396.84
  4. Step 4: Simplify right side
    2,515.94x = 4,849,800.54
  5. Step 5: Solve for x
    x = 4,849,800.54/2,515.94
  6. Step 6: Final answer
    x = 1,927.63

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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.