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Finding the Fourth Proportional to 6,505.93, 8,975.70 and 3,987.22

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Solution

The fourth proportional to 6,505.93, 8,975.70 and 3,987.22 is: 5,500.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,505.93 : 8,975.70 = 3,987.22 : x
  2. Step 2: Convert to fraction form
    6,505.93/8,975.70 = 3,987.22/x
  3. Step 3: Cross multiply
    6,505.93x = 8,975.70 × 3,987.22
  4. Step 4: Simplify right side
    6,505.93x = 35,788,090.55
  5. Step 5: Solve for x
    x = 35,788,090.55/6,505.93
  6. Step 6: Final answer
    x = 5,500.84

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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.