Home / 5,189.06-7,785.60-1,904.42

Finding the Fourth Proportional to 5,189.06, 7,785.60 and 1,904.42

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Solution

The fourth proportional to 5,189.06, 7,785.60 and 1,904.42 is: 2,857.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.06 : 7,785.60 = 1,904.42 : x
  2. Step 2: Convert to fraction form
    5,189.06/7,785.60 = 1,904.42/x
  3. Step 3: Cross multiply
    5,189.06x = 7,785.60 × 1,904.42
  4. Step 4: Simplify right side
    5,189.06x = 14,827,052.35
  5. Step 5: Solve for x
    x = 14,827,052.35/5,189.06
  6. Step 6: Final answer
    x = 2,857.37

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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.