Home / 3,685.24-5,085.68-2,029.24

Finding the Fourth Proportional to 3,685.24, 5,085.68 and 2,029.24

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Solution

The fourth proportional to 3,685.24, 5,085.68 and 2,029.24 is: 2,800.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.24 : 5,085.68 = 2,029.24 : x
  2. Step 2: Convert to fraction form
    3,685.24/5,085.68 = 2,029.24/x
  3. Step 3: Cross multiply
    3,685.24x = 5,085.68 × 2,029.24
  4. Step 4: Simplify right side
    3,685.24x = 10,320,065.28
  5. Step 5: Solve for x
    x = 10,320,065.28/3,685.24
  6. Step 6: Final answer
    x = 2,800.38

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Half scale
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Double scale
Find fourth proportional to 3,686.24, 5,087.06 and 2,030.24
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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.