Home / 4,518.72-6,778.44-1,921.50

Finding the Fourth Proportional to 4,518.72, 6,778.44 and 1,921.50

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Solution

The fourth proportional to 4,518.72, 6,778.44 and 1,921.50 is: 2,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,518.72 : 6,778.44 = 1,921.50 : x
  2. Step 2: Convert to fraction form
    4,518.72/6,778.44 = 1,921.50/x
  3. Step 3: Cross multiply
    4,518.72x = 6,778.44 × 1,921.50
  4. Step 4: Simplify right side
    4,518.72x = 13,024,772.46
  5. Step 5: Solve for x
    x = 13,024,772.46/4,518.72
  6. Step 6: Final answer
    x = 2,882.40

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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.