Home / 7,964.45-10,990.88-4,427.63

Finding the Fourth Proportional to 7,964.45, 10,990.88 and 4,427.63

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Solution

The fourth proportional to 7,964.45, 10,990.88 and 4,427.63 is: 6,110.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.45 : 10,990.88 = 4,427.63 : x
  2. Step 2: Convert to fraction form
    7,964.45/10,990.88 = 4,427.63/x
  3. Step 3: Cross multiply
    7,964.45x = 10,990.88 × 4,427.63
  4. Step 4: Simplify right side
    7,964.45x = 48,663,472.92
  5. Step 5: Solve for x
    x = 48,663,472.92/7,964.45
  6. Step 6: Final answer
    x = 6,110.09

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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.