Home / 5,309.89-7,328.05-3,185.51

Finding the Fourth Proportional to 5,309.89, 7,328.05 and 3,185.51

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Solution

The fourth proportional to 5,309.89, 7,328.05 and 3,185.51 is: 4,396.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.89 : 7,328.05 = 3,185.51 : x
  2. Step 2: Convert to fraction form
    5,309.89/7,328.05 = 3,185.51/x
  3. Step 3: Cross multiply
    5,309.89x = 7,328.05 × 3,185.51
  4. Step 4: Simplify right side
    5,309.89x = 23,343,531.95
  5. Step 5: Solve for x
    x = 23,343,531.95/5,309.89
  6. Step 6: Final answer
    x = 4,396.24

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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.