Home / 4,085.36-5,635.68-2,827.60

Finding the Fourth Proportional to 4,085.36, 5,635.68 and 2,827.60

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Solution

The fourth proportional to 4,085.36, 5,635.68 and 2,827.60 is: 3,900.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.36 : 5,635.68 = 2,827.60 : x
  2. Step 2: Convert to fraction form
    4,085.36/5,635.68 = 2,827.60/x
  3. Step 3: Cross multiply
    4,085.36x = 5,635.68 × 2,827.60
  4. Step 4: Simplify right side
    4,085.36x = 15,935,448.77
  5. Step 5: Solve for x
    x = 15,935,448.77/4,085.36
  6. Step 6: Final answer
    x = 3,900.62

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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.