Home / 4,743.65-7,115.81-1,821.95

Finding the Fourth Proportional to 4,743.65, 7,115.81 and 1,821.95

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Solution

The fourth proportional to 4,743.65, 7,115.81 and 1,821.95 is: 2,733.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,743.65 : 7,115.81 = 1,821.95 : x
  2. Step 2: Convert to fraction form
    4,743.65/7,115.81 = 1,821.95/x
  3. Step 3: Cross multiply
    4,743.65x = 7,115.81 × 1,821.95
  4. Step 4: Simplify right side
    4,743.65x = 12,964,605.34
  5. Step 5: Solve for x
    x = 12,964,605.34/4,743.65
  6. Step 6: Final answer
    x = 2,733.05

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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.