Home / 4,085.48-5,636.58-2,689.64

Finding the Fourth Proportional to 4,085.48, 5,636.58 and 2,689.64

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Solution

The fourth proportional to 4,085.48, 5,636.58 and 2,689.64 is: 3,710.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.48 : 5,636.58 = 2,689.64 : x
  2. Step 2: Convert to fraction form
    4,085.48/5,636.58 = 2,689.64/x
  3. Step 3: Cross multiply
    4,085.48x = 5,636.58 × 2,689.64
  4. Step 4: Simplify right side
    4,085.48x = 15,160,371.03
  5. Step 5: Solve for x
    x = 15,160,371.03/4,085.48
  6. Step 6: Final answer
    x = 3,710.79

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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.