Home / 4,913.40-7,362.90-1,986.60

Finding the Fourth Proportional to 4,913.40, 7,362.90 and 1,986.60

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Solution

The fourth proportional to 4,913.40, 7,362.90 and 1,986.60 is: 2,976.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.40 : 7,362.90 = 1,986.60 : x
  2. Step 2: Convert to fraction form
    4,913.40/7,362.90 = 1,986.60/x
  3. Step 3: Cross multiply
    4,913.40x = 7,362.90 × 1,986.60
  4. Step 4: Simplify right side
    4,913.40x = 14,627,137.14
  5. Step 5: Solve for x
    x = 14,627,137.14/4,913.40
  6. Step 6: Final answer
    x = 2,976.99

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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.