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Finding the Fourth Proportional to 5,424.07, 7,485.22 and 2,940.07

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Solution

The fourth proportional to 5,424.07, 7,485.22 and 2,940.07 is: 4,057.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.07 : 7,485.22 = 2,940.07 : x
  2. Step 2: Convert to fraction form
    5,424.07/7,485.22 = 2,940.07/x
  3. Step 3: Cross multiply
    5,424.07x = 7,485.22 × 2,940.07
  4. Step 4: Simplify right side
    5,424.07x = 22,007,070.77
  5. Step 5: Solve for x
    x = 22,007,070.77/5,424.07
  6. Step 6: Final answer
    x = 4,057.30

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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.