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Finding the Fourth Proportional to 5,523.24, 7,611.93 and 5,172.51

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Solution

The fourth proportional to 5,523.24, 7,611.93 and 5,172.51 is: 7,128.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,523.24 : 7,611.93 = 5,172.51 : x
  2. Step 2: Convert to fraction form
    5,523.24/7,611.93 = 5,172.51/x
  3. Step 3: Cross multiply
    5,523.24x = 7,611.93 × 5,172.51
  4. Step 4: Simplify right side
    5,523.24x = 39,372,784.04
  5. Step 5: Solve for x
    x = 39,372,784.04/5,523.24
  6. Step 6: Final answer
    x = 7,128.57

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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.