Home / 7,147.75-10,722.37-1,953.63

Finding the Fourth Proportional to 7,147.75, 10,722.37 and 1,953.63

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Solution

The fourth proportional to 7,147.75, 10,722.37 and 1,953.63 is: 2,930.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.75 : 10,722.37 = 1,953.63 : x
  2. Step 2: Convert to fraction form
    7,147.75/10,722.37 = 1,953.63/x
  3. Step 3: Cross multiply
    7,147.75x = 10,722.37 × 1,953.63
  4. Step 4: Simplify right side
    7,147.75x = 20,947,543.70
  5. Step 5: Solve for x
    x = 20,947,543.70/7,147.75
  6. Step 6: Final answer
    x = 2,930.65

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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.