Home / 7,927.70-10,940.21-4,390.91

Finding the Fourth Proportional to 7,927.70, 10,940.21 and 4,390.91

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Solution

The fourth proportional to 7,927.70, 10,940.21 and 4,390.91 is: 6,059.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,927.70 : 10,940.21 = 4,390.91 : x
  2. Step 2: Convert to fraction form
    7,927.70/10,940.21 = 4,390.91/x
  3. Step 3: Cross multiply
    7,927.70x = 10,940.21 × 4,390.91
  4. Step 4: Simplify right side
    7,927.70x = 48,037,433.77
  5. Step 5: Solve for x
    x = 48,037,433.77/7,927.70
  6. Step 6: Final answer
    x = 6,059.44

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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.