Home / 4,142.73-6,211.95-1,220.65

Finding the Fourth Proportional to 4,142.73, 6,211.95 and 1,220.65

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Solution

The fourth proportional to 4,142.73, 6,211.95 and 1,220.65 is: 1,830.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.73 : 6,211.95 = 1,220.65 : x
  2. Step 2: Convert to fraction form
    4,142.73/6,211.95 = 1,220.65/x
  3. Step 3: Cross multiply
    4,142.73x = 6,211.95 × 1,220.65
  4. Step 4: Simplify right side
    4,142.73x = 7,582,616.77
  5. Step 5: Solve for x
    x = 7,582,616.77/4,142.73
  6. Step 6: Final answer
    x = 1,830.34

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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.