Home / 7,054.20-9,728.94-5,289.72

Finding the Fourth Proportional to 7,054.20, 9,728.94 and 5,289.72

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Solution

The fourth proportional to 7,054.20, 9,728.94 and 5,289.72 is: 7,295.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,054.20 : 9,728.94 = 5,289.72 : x
  2. Step 2: Convert to fraction form
    7,054.20/9,728.94 = 5,289.72/x
  3. Step 3: Cross multiply
    7,054.20x = 9,728.94 × 5,289.72
  4. Step 4: Simplify right side
    7,054.20x = 51,463,368.50
  5. Step 5: Solve for x
    x = 51,463,368.50/7,054.20
  6. Step 6: Final answer
    x = 7,295.42

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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.