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Finding the Fourth Proportional to 6,369.73, 8,795.40 and 4,130.79

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Solution

The fourth proportional to 6,369.73, 8,795.40 and 4,130.79 is: 5,703.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,369.73 : 8,795.40 = 4,130.79 : x
  2. Step 2: Convert to fraction form
    6,369.73/8,795.40 = 4,130.79/x
  3. Step 3: Cross multiply
    6,369.73x = 8,795.40 × 4,130.79
  4. Step 4: Simplify right side
    6,369.73x = 36,331,950.37
  5. Step 5: Solve for x
    x = 36,331,950.37/6,369.73
  6. Step 6: Final answer
    x = 5,703.84

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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.