Home / 4,977.44-6,866.01-3,111.20

Finding the Fourth Proportional to 4,977.44, 6,866.01 and 3,111.20

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Solution

The fourth proportional to 4,977.44, 6,866.01 and 3,111.20 is: 4,291.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.44 : 6,866.01 = 3,111.20 : x
  2. Step 2: Convert to fraction form
    4,977.44/6,866.01 = 3,111.20/x
  3. Step 3: Cross multiply
    4,977.44x = 6,866.01 × 3,111.20
  4. Step 4: Simplify right side
    4,977.44x = 21,361,530.31
  5. Step 5: Solve for x
    x = 21,361,530.31/4,977.44
  6. Step 6: Final answer
    x = 4,291.67

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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.