Home / 4,415.81-6,623.85-1,818.95

Finding the Fourth Proportional to 4,415.81, 6,623.85 and 1,818.95

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Solution

The fourth proportional to 4,415.81, 6,623.85 and 1,818.95 is: 2,728.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,415.81 : 6,623.85 = 1,818.95 : x
  2. Step 2: Convert to fraction form
    4,415.81/6,623.85 = 1,818.95/x
  3. Step 3: Cross multiply
    4,415.81x = 6,623.85 × 1,818.95
  4. Step 4: Simplify right side
    4,415.81x = 12,048,451.96
  5. Step 5: Solve for x
    x = 12,048,451.96/4,415.81
  6. Step 6: Final answer
    x = 2,728.48

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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.