Home / 3,405.42-5,108.23-1,324.93

Finding the Fourth Proportional to 3,405.42, 5,108.23 and 1,324.93

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Solution

The fourth proportional to 3,405.42, 5,108.23 and 1,324.93 is: 1,987.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.42 : 5,108.23 = 1,324.93 : x
  2. Step 2: Convert to fraction form
    3,405.42/5,108.23 = 1,324.93/x
  3. Step 3: Cross multiply
    3,405.42x = 5,108.23 × 1,324.93
  4. Step 4: Simplify right side
    3,405.42x = 6,768,047.17
  5. Step 5: Solve for x
    x = 6,768,047.17/3,405.42
  6. Step 6: Final answer
    x = 1,987.43

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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.