Home / 7,638.84-11,457.45-2,092.77

Finding the Fourth Proportional to 7,638.84, 11,457.45 and 2,092.77

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Solution

The fourth proportional to 7,638.84, 11,457.45 and 2,092.77 is: 3,138.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.84 : 11,457.45 = 2,092.77 : x
  2. Step 2: Convert to fraction form
    7,638.84/11,457.45 = 2,092.77/x
  3. Step 3: Cross multiply
    7,638.84x = 11,457.45 × 2,092.77
  4. Step 4: Simplify right side
    7,638.84x = 23,977,807.64
  5. Step 5: Solve for x
    x = 23,977,807.64/7,638.84
  6. Step 6: Final answer
    x = 3,138.93

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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.