Home / 5,530.07-7,630.81-3,172.37

Finding the Fourth Proportional to 5,530.07, 7,630.81 and 3,172.37

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Solution

The fourth proportional to 5,530.07, 7,630.81 and 3,172.37 is: 4,377.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.07 : 7,630.81 = 3,172.37 : x
  2. Step 2: Convert to fraction form
    5,530.07/7,630.81 = 3,172.37/x
  3. Step 3: Cross multiply
    5,530.07x = 7,630.81 × 3,172.37
  4. Step 4: Simplify right side
    5,530.07x = 24,207,706.63
  5. Step 5: Solve for x
    x = 24,207,706.63/5,530.07
  6. Step 6: Final answer
    x = 4,377.47

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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.