Home / 4,746.89-7,121.15-2,115.34

Finding the Fourth Proportional to 4,746.89, 7,121.15 and 2,115.34

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Solution

The fourth proportional to 4,746.89, 7,121.15 and 2,115.34 is: 3,173.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,746.89 : 7,121.15 = 2,115.34 : x
  2. Step 2: Convert to fraction form
    4,746.89/7,121.15 = 2,115.34/x
  3. Step 3: Cross multiply
    4,746.89x = 7,121.15 × 2,115.34
  4. Step 4: Simplify right side
    4,746.89x = 15,063,653.44
  5. Step 5: Solve for x
    x = 15,063,653.44/4,746.89
  6. Step 6: Final answer
    x = 3,173.37

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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.