Home / 7,327.86-10,112.41-3,970.65

Finding the Fourth Proportional to 7,327.86, 10,112.41 and 3,970.65

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Solution

The fourth proportional to 7,327.86, 10,112.41 and 3,970.65 is: 5,479.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,327.86 : 10,112.41 = 3,970.65 : x
  2. Step 2: Convert to fraction form
    7,327.86/10,112.41 = 3,970.65/x
  3. Step 3: Cross multiply
    7,327.86x = 10,112.41 × 3,970.65
  4. Step 4: Simplify right side
    7,327.86x = 40,152,840.77
  5. Step 5: Solve for x
    x = 40,152,840.77/7,327.86
  6. Step 6: Final answer
    x = 5,479.48

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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.