Home / 3,360.74-4,636.58-2,181.38

Finding the Fourth Proportional to 3,360.74, 4,636.58 and 2,181.38

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Solution

The fourth proportional to 3,360.74, 4,636.58 and 2,181.38 is: 3,009.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.74 : 4,636.58 = 2,181.38 : x
  2. Step 2: Convert to fraction form
    3,360.74/4,636.58 = 2,181.38/x
  3. Step 3: Cross multiply
    3,360.74x = 4,636.58 × 2,181.38
  4. Step 4: Simplify right side
    3,360.74x = 10,114,108.79
  5. Step 5: Solve for x
    x = 10,114,108.79/3,360.74
  6. Step 6: Final answer
    x = 3,009.49

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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.