Home / 6,121.24-8,447.58-4,029.40

Finding the Fourth Proportional to 6,121.24, 8,447.58 and 4,029.40

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Solution

The fourth proportional to 6,121.24, 8,447.58 and 4,029.40 is: 5,560.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.24 : 8,447.58 = 4,029.40 : x
  2. Step 2: Convert to fraction form
    6,121.24/8,447.58 = 4,029.40/x
  3. Step 3: Cross multiply
    6,121.24x = 8,447.58 × 4,029.40
  4. Step 4: Simplify right side
    6,121.24x = 34,038,678.85
  5. Step 5: Solve for x
    x = 34,038,678.85/6,121.24
  6. Step 6: Final answer
    x = 5,560.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.