Home / 2,515.19-3,470.85-1,396.17

Finding the Fourth Proportional to 2,515.19, 3,470.85 and 1,396.17

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Solution

The fourth proportional to 2,515.19, 3,470.85 and 1,396.17 is: 1,926.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.19 : 3,470.85 = 1,396.17 : x
  2. Step 2: Convert to fraction form
    2,515.19/3,470.85 = 1,396.17/x
  3. Step 3: Cross multiply
    2,515.19x = 3,470.85 × 1,396.17
  4. Step 4: Simplify right side
    2,515.19x = 4,845,896.64
  5. Step 5: Solve for x
    x = 4,845,896.64/2,515.19
  6. Step 6: Final answer
    x = 1,926.66

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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.