Home / 7,738.12-10,678.46-4,380.88

Finding the Fourth Proportional to 7,738.12, 10,678.46 and 4,380.88

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Solution

The fourth proportional to 7,738.12, 10,678.46 and 4,380.88 is: 6,045.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.12 : 10,678.46 = 4,380.88 : x
  2. Step 2: Convert to fraction form
    7,738.12/10,678.46 = 4,380.88/x
  3. Step 3: Cross multiply
    7,738.12x = 10,678.46 × 4,380.88
  4. Step 4: Simplify right side
    7,738.12x = 46,781,051.84
  5. Step 5: Solve for x
    x = 46,781,051.84/7,738.12
  6. Step 6: Final answer
    x = 6,045.53

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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.