Home / 7,900.73-10,905.18-4,914.79

Finding the Fourth Proportional to 7,900.73, 10,905.18 and 4,914.79

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Solution

The fourth proportional to 7,900.73, 10,905.18 and 4,914.79 is: 6,783.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.73 : 10,905.18 = 4,914.79 : x
  2. Step 2: Convert to fraction form
    7,900.73/10,905.18 = 4,914.79/x
  3. Step 3: Cross multiply
    7,900.73x = 10,905.18 × 4,914.79
  4. Step 4: Simplify right side
    7,900.73x = 53,596,669.61
  5. Step 5: Solve for x
    x = 53,596,669.61/7,900.73
  6. Step 6: Final answer
    x = 6,783.76

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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.