Home / 7,379.76-10,185.28-4,235.36

Finding the Fourth Proportional to 7,379.76, 10,185.28 and 4,235.36

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Solution

The fourth proportional to 7,379.76, 10,185.28 and 4,235.36 is: 5,845.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.76 : 10,185.28 = 4,235.36 : x
  2. Step 2: Convert to fraction form
    7,379.76/10,185.28 = 4,235.36/x
  3. Step 3: Cross multiply
    7,379.76x = 10,185.28 × 4,235.36
  4. Step 4: Simplify right side
    7,379.76x = 43,138,327.50
  5. Step 5: Solve for x
    x = 43,138,327.50/7,379.76
  6. Step 6: Final answer
    x = 5,845.49

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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.