Home / 5,927.39-8,181.38-3,688

Finding the Fourth Proportional to 5,927.39, 8,181.38 and 3,688

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Solution

The fourth proportional to 5,927.39, 8,181.38 and 3,688 is: 5,090.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,927.39 : 8,181.38 = 3,688 : x
  2. Step 2: Convert to fraction form
    5,927.39/8,181.38 = 3,688/x
  3. Step 3: Cross multiply
    5,927.39x = 8,181.38 × 3,688
  4. Step 4: Simplify right side
    5,927.39x = 30,172,929.44
  5. Step 5: Solve for x
    x = 30,172,929.44/5,927.39
  6. Step 6: Final answer
    x = 5,090.42

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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.