Home / 1,891.07-2,836.74-504.40

Finding the Fourth Proportional to 1,891.07, 2,836.74 and 504.40

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Solution

The fourth proportional to 1,891.07, 2,836.74 and 504.40 is: 756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.07 : 2,836.74 = 504.40 : x
  2. Step 2: Convert to fraction form
    1,891.07/2,836.74 = 504.40/x
  3. Step 3: Cross multiply
    1,891.07x = 2,836.74 × 504.40
  4. Step 4: Simplify right side
    1,891.07x = 1,430,851.66
  5. Step 5: Solve for x
    x = 1,430,851.66/1,891.07
  6. Step 6: Final answer
    x = 756.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.