Home / 5,135.40-7,704.90-1,848.60

Finding the Fourth Proportional to 5,135.40, 7,704.90 and 1,848.60

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Solution

The fourth proportional to 5,135.40, 7,704.90 and 1,848.60 is: 2,773.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.40 : 7,704.90 = 1,848.60 : x
  2. Step 2: Convert to fraction form
    5,135.40/7,704.90 = 1,848.60/x
  3. Step 3: Cross multiply
    5,135.40x = 7,704.90 × 1,848.60
  4. Step 4: Simplify right side
    5,135.40x = 14,243,278.14
  5. Step 5: Solve for x
    x = 14,243,278.14/5,135.40
  6. Step 6: Final answer
    x = 2,773.55

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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.