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Finding the Fourth Proportional to 3,368.42, 4,649.00 and 2,486.79

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Solution

The fourth proportional to 3,368.42, 4,649.00 and 2,486.79 is: 3,432.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.42 : 4,649.00 = 2,486.79 : x
  2. Step 2: Convert to fraction form
    3,368.42/4,649.00 = 2,486.79/x
  3. Step 3: Cross multiply
    3,368.42x = 4,649.00 × 2,486.79
  4. Step 4: Simplify right side
    3,368.42x = 11,561,074.28
  5. Step 5: Solve for x
    x = 11,561,074.28/3,368.42
  6. Step 6: Final answer
    x = 3,432.20

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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.