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Finding the Fourth Proportional to 5,359.41, 7,400.07 and 4,178.43

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Solution

The fourth proportional to 5,359.41, 7,400.07 and 4,178.43 is: 5,769.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.41 : 7,400.07 = 4,178.43 : x
  2. Step 2: Convert to fraction form
    5,359.41/7,400.07 = 4,178.43/x
  3. Step 3: Cross multiply
    5,359.41x = 7,400.07 × 4,178.43
  4. Step 4: Simplify right side
    5,359.41x = 30,920,674.49
  5. Step 5: Solve for x
    x = 30,920,674.49/5,359.41
  6. Step 6: Final answer
    x = 5,769.42

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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.