Home / 7,828.22-10,800.24-4,640.87

Finding the Fourth Proportional to 7,828.22, 10,800.24 and 4,640.87

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Solution

The fourth proportional to 7,828.22, 10,800.24 and 4,640.87 is: 6,402.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.22 : 10,800.24 = 4,640.87 : x
  2. Step 2: Convert to fraction form
    7,828.22/10,800.24 = 4,640.87/x
  3. Step 3: Cross multiply
    7,828.22x = 10,800.24 × 4,640.87
  4. Step 4: Simplify right side
    7,828.22x = 50,122,455.81
  5. Step 5: Solve for x
    x = 50,122,455.81/7,828.22
  6. Step 6: Final answer
    x = 6,402.79

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1.5x scale

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.