Home / 5,190.48-7,783.86-1,902.84

Finding the Fourth Proportional to 5,190.48, 7,783.86 and 1,902.84

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Solution

The fourth proportional to 5,190.48, 7,783.86 and 1,902.84 is: 2,853.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.48 : 7,783.86 = 1,902.84 : x
  2. Step 2: Convert to fraction form
    5,190.48/7,783.86 = 1,902.84/x
  3. Step 3: Cross multiply
    5,190.48x = 7,783.86 × 1,902.84
  4. Step 4: Simplify right side
    5,190.48x = 14,811,440.16
  5. Step 5: Solve for x
    x = 14,811,440.16/5,190.48
  6. Step 6: Final answer
    x = 2,853.58

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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.