Home / 4,130.78-6,191.40-1,904.96

Finding the Fourth Proportional to 4,130.78, 6,191.40 and 1,904.96

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Solution

The fourth proportional to 4,130.78, 6,191.40 and 1,904.96 is: 2,855.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,130.78 : 6,191.40 = 1,904.96 : x
  2. Step 2: Convert to fraction form
    4,130.78/6,191.40 = 1,904.96/x
  3. Step 3: Cross multiply
    4,130.78x = 6,191.40 × 1,904.96
  4. Step 4: Simplify right side
    4,130.78x = 11,794,369.34
  5. Step 5: Solve for x
    x = 11,794,369.34/4,130.78
  6. Step 6: Final answer
    x = 2,855.24

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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.