Home / 5,114.28-7,672.56-1,829.76

Finding the Fourth Proportional to 5,114.28, 7,672.56 and 1,829.76

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Solution

The fourth proportional to 5,114.28, 7,672.56 and 1,829.76 is: 2,745.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.28 : 7,672.56 = 1,829.76 : x
  2. Step 2: Convert to fraction form
    5,114.28/7,672.56 = 1,829.76/x
  3. Step 3: Cross multiply
    5,114.28x = 7,672.56 × 1,829.76
  4. Step 4: Simplify right side
    5,114.28x = 14,038,943.39
  5. Step 5: Solve for x
    x = 14,038,943.39/5,114.28
  6. Step 6: Final answer
    x = 2,745.05

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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.