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Finding the Fourth Proportional to 7,388.58, 10,200 and 5,706.21

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Solution

The fourth proportional to 7,388.58, 10,200 and 5,706.21 is: 7,877.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388.58 : 10,200 = 5,706.21 : x
  2. Step 2: Convert to fraction form
    7,388.58/10,200 = 5,706.21/x
  3. Step 3: Cross multiply
    7,388.58x = 10,200 × 5,706.21
  4. Step 4: Simplify right side
    7,388.58x = 58,203,342
  5. Step 5: Solve for x
    x = 58,203,342/7,388.58
  6. Step 6: Final answer
    x = 7,877.47

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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.