Home / 2,515.65-3,471.57-1,396.59

Finding the Fourth Proportional to 2,515.65, 3,471.57 and 1,396.59

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Solution

The fourth proportional to 2,515.65, 3,471.57 and 1,396.59 is: 1,927.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.65 : 3,471.57 = 1,396.59 : x
  2. Step 2: Convert to fraction form
    2,515.65/3,471.57 = 1,396.59/x
  3. Step 3: Cross multiply
    2,515.65x = 3,471.57 × 1,396.59
  4. Step 4: Simplify right side
    2,515.65x = 4,848,335.61
  5. Step 5: Solve for x
    x = 4,848,335.61/2,515.65
  6. Step 6: Final answer
    x = 1,927.27

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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.