Home / 7,820.70-10,790.30-4,676.28

Finding the Fourth Proportional to 7,820.70, 10,790.30 and 4,676.28

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Solution

The fourth proportional to 7,820.70, 10,790.30 and 4,676.28 is: 6,451.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.70 : 10,790.30 = 4,676.28 : x
  2. Step 2: Convert to fraction form
    7,820.70/10,790.30 = 4,676.28/x
  3. Step 3: Cross multiply
    7,820.70x = 10,790.30 × 4,676.28
  4. Step 4: Simplify right side
    7,820.70x = 50,458,464.08
  5. Step 5: Solve for x
    x = 50,458,464.08/7,820.70
  6. Step 6: Final answer
    x = 6,451.91

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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.