Home / 4,747.90-7,121.80-1,460.96

Finding the Fourth Proportional to 4,747.90, 7,121.80 and 1,460.96

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Solution

The fourth proportional to 4,747.90, 7,121.80 and 1,460.96 is: 2,191.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.90 : 7,121.80 = 1,460.96 : x
  2. Step 2: Convert to fraction form
    4,747.90/7,121.80 = 1,460.96/x
  3. Step 3: Cross multiply
    4,747.90x = 7,121.80 × 1,460.96
  4. Step 4: Simplify right side
    4,747.90x = 10,404,664.93
  5. Step 5: Solve for x
    x = 10,404,664.93/4,747.90
  6. Step 6: Final answer
    x = 2,191.42

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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.