Home / 7,740.73-11,619.30-4,821.10

Finding the Fourth Proportional to 7,740.73, 11,619.30 and 4,821.10

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Solution

The fourth proportional to 7,740.73, 11,619.30 and 4,821.10 is: 7,236.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.73 : 11,619.30 = 4,821.10 : x
  2. Step 2: Convert to fraction form
    7,740.73/11,619.30 = 4,821.10/x
  3. Step 3: Cross multiply
    7,740.73x = 11,619.30 × 4,821.10
  4. Step 4: Simplify right side
    7,740.73x = 56,017,807.23
  5. Step 5: Solve for x
    x = 56,017,807.23/7,740.73
  6. Step 6: Final answer
    x = 7,236.76

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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.