Home / 7,738.18-10,676.10-4,380.64

Finding the Fourth Proportional to 7,738.18, 10,676.10 and 4,380.64

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Solution

The fourth proportional to 7,738.18, 10,676.10 and 4,380.64 is: 6,043.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.18 : 10,676.10 = 4,380.64 : x
  2. Step 2: Convert to fraction form
    7,738.18/10,676.10 = 4,380.64/x
  3. Step 3: Cross multiply
    7,738.18x = 10,676.10 × 4,380.64
  4. Step 4: Simplify right side
    7,738.18x = 46,768,150.70
  5. Step 5: Solve for x
    x = 46,768,150.70/7,738.18
  6. Step 6: Final answer
    x = 6,043.82

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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.