Home / 3,347.20-5,020.64-1,038.72

Finding the Fourth Proportional to 3,347.20, 5,020.64 and 1,038.72

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Solution

The fourth proportional to 3,347.20, 5,020.64 and 1,038.72 is: 1,558.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.20 : 5,020.64 = 1,038.72 : x
  2. Step 2: Convert to fraction form
    3,347.20/5,020.64 = 1,038.72/x
  3. Step 3: Cross multiply
    3,347.20x = 5,020.64 × 1,038.72
  4. Step 4: Simplify right side
    3,347.20x = 5,215,039.18
  5. Step 5: Solve for x
    x = 5,215,039.18/3,347.20
  6. Step 6: Final answer
    x = 1,558.03

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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.