Home / 7,074.95-9,763.74-3,930.93

Finding the Fourth Proportional to 7,074.95, 9,763.74 and 3,930.93

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Solution

The fourth proportional to 7,074.95, 9,763.74 and 3,930.93 is: 5,424.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074.95 : 9,763.74 = 3,930.93 : x
  2. Step 2: Convert to fraction form
    7,074.95/9,763.74 = 3,930.93/x
  3. Step 3: Cross multiply
    7,074.95x = 9,763.74 × 3,930.93
  4. Step 4: Simplify right side
    7,074.95x = 38,380,578.48
  5. Step 5: Solve for x
    x = 38,380,578.48/7,074.95
  6. Step 6: Final answer
    x = 5,424.86

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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.