Home / 4,099.80-6,148.70-1,177.80

Finding the Fourth Proportional to 4,099.80, 6,148.70 and 1,177.80

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Solution

The fourth proportional to 4,099.80, 6,148.70 and 1,177.80 is: 1,766.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,099.80 : 6,148.70 = 1,177.80 : x
  2. Step 2: Convert to fraction form
    4,099.80/6,148.70 = 1,177.80/x
  3. Step 3: Cross multiply
    4,099.80x = 6,148.70 × 1,177.80
  4. Step 4: Simplify right side
    4,099.80x = 7,241,938.86
  5. Step 5: Solve for x
    x = 7,241,938.86/4,099.80
  6. Step 6: Final answer
    x = 1,766.41

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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.