Home / 7,785.56-10,744.37-4,428.68

Finding the Fourth Proportional to 7,785.56, 10,744.37 and 4,428.68

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Solution

The fourth proportional to 7,785.56, 10,744.37 and 4,428.68 is: 6,111.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.56 : 10,744.37 = 4,428.68 : x
  2. Step 2: Convert to fraction form
    7,785.56/10,744.37 = 4,428.68/x
  3. Step 3: Cross multiply
    7,785.56x = 10,744.37 × 4,428.68
  4. Step 4: Simplify right side
    7,785.56x = 47,583,414.46
  5. Step 5: Solve for x
    x = 47,583,414.46/7,785.56
  6. Step 6: Final answer
    x = 6,111.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.