Home / 4,778.19-7,166.88-2,180.93

Finding the Fourth Proportional to 4,778.19, 7,166.88 and 2,180.93

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Solution

The fourth proportional to 4,778.19, 7,166.88 and 2,180.93 is: 3,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.19 : 7,166.88 = 2,180.93 : x
  2. Step 2: Convert to fraction form
    4,778.19/7,166.88 = 2,180.93/x
  3. Step 3: Cross multiply
    4,778.19x = 7,166.88 × 2,180.93
  4. Step 4: Simplify right side
    4,778.19x = 15,630,427.76
  5. Step 5: Solve for x
    x = 15,630,427.76/4,778.19
  6. Step 6: Final answer
    x = 3,271.20

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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.