Home / 5,530.51-7,631.67-3,405.43

Finding the Fourth Proportional to 5,530.51, 7,631.67 and 3,405.43

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Solution

The fourth proportional to 5,530.51, 7,631.67 and 3,405.43 is: 4,699.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.51 : 7,631.67 = 3,405.43 : x
  2. Step 2: Convert to fraction form
    5,530.51/7,631.67 = 3,405.43/x
  3. Step 3: Cross multiply
    5,530.51x = 7,631.67 × 3,405.43
  4. Step 4: Simplify right side
    5,530.51x = 25,989,117.97
  5. Step 5: Solve for x
    x = 25,989,117.97/5,530.51
  6. Step 6: Final answer
    x = 4,699.23

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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.