Home / 4,981.44-6,870-2,991.27

Finding the Fourth Proportional to 4,981.44, 6,870 and 2,991.27

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Solution

The fourth proportional to 4,981.44, 6,870 and 2,991.27 is: 4,125.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.44 : 6,870 = 2,991.27 : x
  2. Step 2: Convert to fraction form
    4,981.44/6,870 = 2,991.27/x
  3. Step 3: Cross multiply
    4,981.44x = 6,870 × 2,991.27
  4. Step 4: Simplify right side
    4,981.44x = 20,550,024.90
  5. Step 5: Solve for x
    x = 20,550,024.90/4,981.44
  6. Step 6: Final answer
    x = 4,125.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.