Home / 2,236.16-3,085.40-1,292

Finding the Fourth Proportional to 2,236.16, 3,085.40 and 1,292

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Solution

The fourth proportional to 2,236.16, 3,085.40 and 1,292 is: 1,782.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,236.16 : 3,085.40 = 1,292 : x
  2. Step 2: Convert to fraction form
    2,236.16/3,085.40 = 1,292/x
  3. Step 3: Cross multiply
    2,236.16x = 3,085.40 × 1,292
  4. Step 4: Simplify right side
    2,236.16x = 3,986,336.80
  5. Step 5: Solve for x
    x = 3,986,336.80/2,236.16
  6. Step 6: Final answer
    x = 1,782.67

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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.