Home / 7,077.96-10,619.64-2,638.35

Finding the Fourth Proportional to 7,077.96, 10,619.64 and 2,638.35

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Solution

The fourth proportional to 7,077.96, 10,619.64 and 2,638.35 is: 3,958.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.96 : 10,619.64 = 2,638.35 : x
  2. Step 2: Convert to fraction form
    7,077.96/10,619.64 = 2,638.35/x
  3. Step 3: Cross multiply
    7,077.96x = 10,619.64 × 2,638.35
  4. Step 4: Simplify right side
    7,077.96x = 28,018,327.19
  5. Step 5: Solve for x
    x = 28,018,327.19/7,077.96
  6. Step 6: Final answer
    x = 3,958.53

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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.