Home / 3,685.56-5,085.36-2,287.68

Finding the Fourth Proportional to 3,685.56, 5,085.36 and 2,287.68

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Solution

The fourth proportional to 3,685.56, 5,085.36 and 2,287.68 is: 3,156.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.56 : 5,085.36 = 2,287.68 : x
  2. Step 2: Convert to fraction form
    3,685.56/5,085.36 = 2,287.68/x
  3. Step 3: Cross multiply
    3,685.56x = 5,085.36 × 2,287.68
  4. Step 4: Simplify right side
    3,685.56x = 11,633,676.36
  5. Step 5: Solve for x
    x = 11,633,676.36/3,685.56
  6. Step 6: Final answer
    x = 3,156.56

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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.