Home / 4,743.45-7,118.55-1,821.74

Finding the Fourth Proportional to 4,743.45, 7,118.55 and 1,821.74

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Solution

The fourth proportional to 4,743.45, 7,118.55 and 1,821.74 is: 2,733.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,743.45 : 7,118.55 = 1,821.74 : x
  2. Step 2: Convert to fraction form
    4,743.45/7,118.55 = 1,821.74/x
  3. Step 3: Cross multiply
    4,743.45x = 7,118.55 × 1,821.74
  4. Step 4: Simplify right side
    4,743.45x = 12,968,111.68
  5. Step 5: Solve for x
    x = 12,968,111.68/4,743.45
  6. Step 6: Final answer
    x = 2,733.90

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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.