Home / 4,749.83-7,122.92-1,977.81

Finding the Fourth Proportional to 4,749.83, 7,122.92 and 1,977.81

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Solution

The fourth proportional to 4,749.83, 7,122.92 and 1,977.81 is: 2,965.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,749.83 : 7,122.92 = 1,977.81 : x
  2. Step 2: Convert to fraction form
    4,749.83/7,122.92 = 1,977.81/x
  3. Step 3: Cross multiply
    4,749.83x = 7,122.92 × 1,977.81
  4. Step 4: Simplify right side
    4,749.83x = 14,087,782.41
  5. Step 5: Solve for x
    x = 14,087,782.41/4,749.83
  6. Step 6: Final answer
    x = 2,965.96

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1.5x scale

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.