Home / 7,389.75-10,197.90-4,077.75

Finding the Fourth Proportional to 7,389.75, 10,197.90 and 4,077.75

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Solution

The fourth proportional to 7,389.75, 10,197.90 and 4,077.75 is: 5,627.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.75 : 10,197.90 = 4,077.75 : x
  2. Step 2: Convert to fraction form
    7,389.75/10,197.90 = 4,077.75/x
  3. Step 3: Cross multiply
    7,389.75x = 10,197.90 × 4,077.75
  4. Step 4: Simplify right side
    7,389.75x = 41,584,486.73
  5. Step 5: Solve for x
    x = 41,584,486.73/7,389.75
  6. Step 6: Final answer
    x = 5,627.32

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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.