Home / 4,427.02-6,640.02-2,778.67

Finding the Fourth Proportional to 4,427.02, 6,640.02 and 2,778.67

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Solution

The fourth proportional to 4,427.02, 6,640.02 and 2,778.67 is: 4,167.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,427.02 : 6,640.02 = 2,778.67 : x
  2. Step 2: Convert to fraction form
    4,427.02/6,640.02 = 2,778.67/x
  3. Step 3: Cross multiply
    4,427.02x = 6,640.02 × 2,778.67
  4. Step 4: Simplify right side
    4,427.02x = 18,450,424.37
  5. Step 5: Solve for x
    x = 18,450,424.37/4,427.02
  6. Step 6: Final answer
    x = 4,167.68

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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.