Home / 7,519.84-10,379.92-4,378.64

Finding the Fourth Proportional to 7,519.84, 10,379.92 and 4,378.64

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Solution

The fourth proportional to 7,519.84, 10,379.92 and 4,378.64 is: 6,044.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,519.84 : 10,379.92 = 4,378.64 : x
  2. Step 2: Convert to fraction form
    7,519.84/10,379.92 = 4,378.64/x
  3. Step 3: Cross multiply
    7,519.84x = 10,379.92 × 4,378.64
  4. Step 4: Simplify right side
    7,519.84x = 45,449,932.91
  5. Step 5: Solve for x
    x = 45,449,932.91/7,519.84
  6. Step 6: Final answer
    x = 6,044.00

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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.