Home / 4,747.75-7,121.41-1,460.70

Finding the Fourth Proportional to 4,747.75, 7,121.41 and 1,460.70

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Solution

The fourth proportional to 4,747.75, 7,121.41 and 1,460.70 is: 2,190.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.75 : 7,121.41 = 1,460.70 : x
  2. Step 2: Convert to fraction form
    4,747.75/7,121.41 = 1,460.70/x
  3. Step 3: Cross multiply
    4,747.75x = 7,121.41 × 1,460.70
  4. Step 4: Simplify right side
    4,747.75x = 10,402,243.59
  5. Step 5: Solve for x
    x = 10,402,243.59/4,747.75
  6. Step 6: Final answer
    x = 2,190.98

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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.