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Finding the Fourth Proportional to 1,890.88, 2,836.53 and 504.23

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Solution

The fourth proportional to 1,890.88, 2,836.53 and 504.23 is: 756.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.88 : 2,836.53 = 504.23 : x
  2. Step 2: Convert to fraction form
    1,890.88/2,836.53 = 504.23/x
  3. Step 3: Cross multiply
    1,890.88x = 2,836.53 × 504.23
  4. Step 4: Simplify right side
    1,890.88x = 1,430,263.52
  5. Step 5: Solve for x
    x = 1,430,263.52/1,890.88
  6. Step 6: Final answer
    x = 756.40

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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.