Home / 4,913.70-7,370.59-1,991.31

Finding the Fourth Proportional to 4,913.70, 7,370.59 and 1,991.31

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Solution

The fourth proportional to 4,913.70, 7,370.59 and 1,991.31 is: 2,986.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.70 : 7,370.59 = 1,991.31 : x
  2. Step 2: Convert to fraction form
    4,913.70/7,370.59 = 1,991.31/x
  3. Step 3: Cross multiply
    4,913.70x = 7,370.59 × 1,991.31
  4. Step 4: Simplify right side
    4,913.70x = 14,677,129.57
  5. Step 5: Solve for x
    x = 14,677,129.57/4,913.70
  6. Step 6: Final answer
    x = 2,986.98

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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.