Home / 2,778.84-4,165.02-1,479.60

Finding the Fourth Proportional to 2,778.84, 4,165.02 and 1,479.60

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Solution

The fourth proportional to 2,778.84, 4,165.02 and 1,479.60 is: 2,217.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.84 : 4,165.02 = 1,479.60 : x
  2. Step 2: Convert to fraction form
    2,778.84/4,165.02 = 1,479.60/x
  3. Step 3: Cross multiply
    2,778.84x = 4,165.02 × 1,479.60
  4. Step 4: Simplify right side
    2,778.84x = 6,162,563.59
  5. Step 5: Solve for x
    x = 6,162,563.59/2,778.84
  6. Step 6: Final answer
    x = 2,217.67

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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.