Home / 2,515.18-3,470.75-1,396.01

Finding the Fourth Proportional to 2,515.18, 3,470.75 and 1,396.01

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Solution

The fourth proportional to 2,515.18, 3,470.75 and 1,396.01 is: 1,926.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.18 : 3,470.75 = 1,396.01 : x
  2. Step 2: Convert to fraction form
    2,515.18/3,470.75 = 1,396.01/x
  3. Step 3: Cross multiply
    2,515.18x = 3,470.75 × 1,396.01
  4. Step 4: Simplify right side
    2,515.18x = 4,845,213.87
  5. Step 5: Solve for x
    x = 4,845,213.87/2,515.18
  6. Step 6: Final answer
    x = 1,926.39

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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.