Home / 7,485.78-10,331.62-4,503.26

Finding the Fourth Proportional to 7,485.78, 10,331.62 and 4,503.26

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Solution

The fourth proportional to 7,485.78, 10,331.62 and 4,503.26 is: 6,215.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.78 : 10,331.62 = 4,503.26 : x
  2. Step 2: Convert to fraction form
    7,485.78/10,331.62 = 4,503.26/x
  3. Step 3: Cross multiply
    7,485.78x = 10,331.62 × 4,503.26
  4. Step 4: Simplify right side
    7,485.78x = 46,525,985.65
  5. Step 5: Solve for x
    x = 46,525,985.65/7,485.78
  6. Step 6: Final answer
    x = 6,215.25

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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.