Home / 4,980.44-6,870.14-3,114.20

Finding the Fourth Proportional to 4,980.44, 6,870.14 and 3,114.20

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Solution

The fourth proportional to 4,980.44, 6,870.14 and 3,114.20 is: 4,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.44 : 6,870.14 = 3,114.20 : x
  2. Step 2: Convert to fraction form
    4,980.44/6,870.14 = 3,114.20/x
  3. Step 3: Cross multiply
    4,980.44x = 6,870.14 × 3,114.20
  4. Step 4: Simplify right side
    4,980.44x = 21,394,989.99
  5. Step 5: Solve for x
    x = 21,394,989.99/4,980.44
  6. Step 6: Final answer
    x = 4,295.80

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1.5x scale

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.