Home / 5,214.55-7,811.75-2,899.03

Finding the Fourth Proportional to 5,214.55, 7,811.75 and 2,899.03

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Solution

The fourth proportional to 5,214.55, 7,811.75 and 2,899.03 is: 4,342.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.55 : 7,811.75 = 2,899.03 : x
  2. Step 2: Convert to fraction form
    5,214.55/7,811.75 = 2,899.03/x
  3. Step 3: Cross multiply
    5,214.55x = 7,811.75 × 2,899.03
  4. Step 4: Simplify right side
    5,214.55x = 22,646,483.11
  5. Step 5: Solve for x
    x = 22,646,483.11/5,214.55
  6. Step 6: Final answer
    x = 4,342.94

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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.