Home / 3,638.48-5,020.91-2,045.19

Finding the Fourth Proportional to 3,638.48, 5,020.91 and 2,045.19

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Solution

The fourth proportional to 3,638.48, 5,020.91 and 2,045.19 is: 2,822.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.48 : 5,020.91 = 2,045.19 : x
  2. Step 2: Convert to fraction form
    3,638.48/5,020.91 = 2,045.19/x
  3. Step 3: Cross multiply
    3,638.48x = 5,020.91 × 2,045.19
  4. Step 4: Simplify right side
    3,638.48x = 10,268,714.92
  5. Step 5: Solve for x
    x = 10,268,714.92/3,638.48
  6. Step 6: Final answer
    x = 2,822.25

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Half scale
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Double scale
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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.