Home / 3,085.28-4,627.68-1,236.32

Finding the Fourth Proportional to 3,085.28, 4,627.68 and 1,236.32

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Solution

The fourth proportional to 3,085.28, 4,627.68 and 1,236.32 is: 1,854.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.28 : 4,627.68 = 1,236.32 : x
  2. Step 2: Convert to fraction form
    3,085.28/4,627.68 = 1,236.32/x
  3. Step 3: Cross multiply
    3,085.28x = 4,627.68 × 1,236.32
  4. Step 4: Simplify right side
    3,085.28x = 5,721,293.34
  5. Step 5: Solve for x
    x = 5,721,293.34/3,085.28
  6. Step 6: Final answer
    x = 1,854.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.