Home / 5,190.98-7,784.61-1,903.34

Finding the Fourth Proportional to 5,190.98, 7,784.61 and 1,903.34

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Solution

The fourth proportional to 5,190.98, 7,784.61 and 1,903.34 is: 2,854.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.98 : 7,784.61 = 1,903.34 : x
  2. Step 2: Convert to fraction form
    5,190.98/7,784.61 = 1,903.34/x
  3. Step 3: Cross multiply
    5,190.98x = 7,784.61 × 1,903.34
  4. Step 4: Simplify right side
    5,190.98x = 14,816,759.60
  5. Step 5: Solve for x
    x = 14,816,759.60/5,190.98
  6. Step 6: Final answer
    x = 2,854.33

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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.