Home / 7,028.40-9,703.67-4,379.70

Finding the Fourth Proportional to 7,028.40, 9,703.67 and 4,379.70

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Solution

The fourth proportional to 7,028.40, 9,703.67 and 4,379.70 is: 6,046.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028.40 : 9,703.67 = 4,379.70 : x
  2. Step 2: Convert to fraction form
    7,028.40/9,703.67 = 4,379.70/x
  3. Step 3: Cross multiply
    7,028.40x = 9,703.67 × 4,379.70
  4. Step 4: Simplify right side
    7,028.40x = 42,499,141.60
  5. Step 5: Solve for x
    x = 42,499,141.60/7,028.40
  6. Step 6: Final answer
    x = 6,046.77

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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.