Home / 5,424.57-7,485.91-2,940.57

Finding the Fourth Proportional to 5,424.57, 7,485.91 and 2,940.57

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Solution

The fourth proportional to 5,424.57, 7,485.91 and 2,940.57 is: 4,057.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.57 : 7,485.91 = 2,940.57 : x
  2. Step 2: Convert to fraction form
    5,424.57/7,485.91 = 2,940.57/x
  3. Step 3: Cross multiply
    5,424.57x = 7,485.91 × 2,940.57
  4. Step 4: Simplify right side
    5,424.57x = 22,012,842.37
  5. Step 5: Solve for x
    x = 22,012,842.37/5,424.57
  6. Step 6: Final answer
    x = 4,057.99

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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.