Home / 3,347.28-5,021.76-1,038.72

Finding the Fourth Proportional to 3,347.28, 5,021.76 and 1,038.72

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Solution

The fourth proportional to 3,347.28, 5,021.76 and 1,038.72 is: 1,558.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.28 : 5,021.76 = 1,038.72 : x
  2. Step 2: Convert to fraction form
    3,347.28/5,021.76 = 1,038.72/x
  3. Step 3: Cross multiply
    3,347.28x = 5,021.76 × 1,038.72
  4. Step 4: Simplify right side
    3,347.28x = 5,216,202.55
  5. Step 5: Solve for x
    x = 5,216,202.55/3,347.28
  6. Step 6: Final answer
    x = 1,558.34

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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.