Home / 3,218.47-4,442.58-1,892.57

Finding the Fourth Proportional to 3,218.47, 4,442.58 and 1,892.57

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Solution

The fourth proportional to 3,218.47, 4,442.58 and 1,892.57 is: 2,612.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.47 : 4,442.58 = 1,892.57 : x
  2. Step 2: Convert to fraction form
    3,218.47/4,442.58 = 1,892.57/x
  3. Step 3: Cross multiply
    3,218.47x = 4,442.58 × 1,892.57
  4. Step 4: Simplify right side
    3,218.47x = 8,407,871.42
  5. Step 5: Solve for x
    x = 8,407,871.42/3,218.47
  6. Step 6: Final answer
    x = 2,612.38

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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.