Home / 3,378.95-5,068.38-1,038.90

Finding the Fourth Proportional to 3,378.95, 5,068.38 and 1,038.90

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Solution

The fourth proportional to 3,378.95, 5,068.38 and 1,038.90 is: 1,558.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.95 : 5,068.38 = 1,038.90 : x
  2. Step 2: Convert to fraction form
    3,378.95/5,068.38 = 1,038.90/x
  3. Step 3: Cross multiply
    3,378.95x = 5,068.38 × 1,038.90
  4. Step 4: Simplify right side
    3,378.95x = 5,265,562.88
  5. Step 5: Solve for x
    x = 5,265,562.88/3,378.95
  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.