Home / 3,345.20-5,015.05-1,264.02

Finding the Fourth Proportional to 3,345.20, 5,015.05 and 1,264.02

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Solution

The fourth proportional to 3,345.20, 5,015.05 and 1,264.02 is: 1,894.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.20 : 5,015.05 = 1,264.02 : x
  2. Step 2: Convert to fraction form
    3,345.20/5,015.05 = 1,264.02/x
  3. Step 3: Cross multiply
    3,345.20x = 5,015.05 × 1,264.02
  4. Step 4: Simplify right side
    3,345.20x = 6,339,100.01
  5. Step 5: Solve for x
    x = 6,339,100.01/3,345.20
  6. Step 6: Final answer
    x = 1,894.99

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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.