Home / 7,920.94-10,930.57-4,384.07

Finding the Fourth Proportional to 7,920.94, 10,930.57 and 4,384.07

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Solution

The fourth proportional to 7,920.94, 10,930.57 and 4,384.07 is: 6,049.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920.94 : 10,930.57 = 4,384.07 : x
  2. Step 2: Convert to fraction form
    7,920.94/10,930.57 = 4,384.07/x
  3. Step 3: Cross multiply
    7,920.94x = 10,930.57 × 4,384.07
  4. Step 4: Simplify right side
    7,920.94x = 47,920,384.02
  5. Step 5: Solve for x
    x = 47,920,384.02/7,920.94
  6. Step 6: Final answer
    x = 6,049.84

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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.