Home / 3,411.72-5,114.12-1,330.44

Finding the Fourth Proportional to 3,411.72, 5,114.12 and 1,330.44

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Solution

The fourth proportional to 3,411.72, 5,114.12 and 1,330.44 is: 1,994.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.72 : 5,114.12 = 1,330.44 : x
  2. Step 2: Convert to fraction form
    3,411.72/5,114.12 = 1,330.44/x
  3. Step 3: Cross multiply
    3,411.72x = 5,114.12 × 1,330.44
  4. Step 4: Simplify right side
    3,411.72x = 6,804,029.81
  5. Step 5: Solve for x
    x = 6,804,029.81/3,411.72
  6. Step 6: Final answer
    x = 1,994.31

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1.5x scale

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.