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Finding the Fourth Proportional to 5,290.07, 7,936.33 and 1,779.99

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Solution

The fourth proportional to 5,290.07, 7,936.33 and 1,779.99 is: 2,670.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.07 : 7,936.33 = 1,779.99 : x
  2. Step 2: Convert to fraction form
    5,290.07/7,936.33 = 1,779.99/x
  3. Step 3: Cross multiply
    5,290.07x = 7,936.33 × 1,779.99
  4. Step 4: Simplify right side
    5,290.07x = 14,126,564.06
  5. Step 5: Solve for x
    x = 14,126,564.06/5,290.07
  6. Step 6: Final answer
    x = 2,670.39

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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.