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Finding the Fourth Proportional to 7,073.40, 9,763.02 and 4,279.80

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Solution

The fourth proportional to 7,073.40, 9,763.02 and 4,279.80 is: 5,907.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.40 : 9,763.02 = 4,279.80 : x
  2. Step 2: Convert to fraction form
    7,073.40/9,763.02 = 4,279.80/x
  3. Step 3: Cross multiply
    7,073.40x = 9,763.02 × 4,279.80
  4. Step 4: Simplify right side
    7,073.40x = 41,783,773.00
  5. Step 5: Solve for x
    x = 41,783,773.00/7,073.40
  6. Step 6: Final answer
    x = 5,907.17

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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.