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Finding the Fourth Proportional to 3,393.65, 4,678.40 and 2,495.81

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Solution

The fourth proportional to 3,393.65, 4,678.40 and 2,495.81 is: 3,440.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.65 : 4,678.40 = 2,495.81 : x
  2. Step 2: Convert to fraction form
    3,393.65/4,678.40 = 2,495.81/x
  3. Step 3: Cross multiply
    3,393.65x = 4,678.40 × 2,495.81
  4. Step 4: Simplify right side
    3,393.65x = 11,676,415.44
  5. Step 5: Solve for x
    x = 11,676,415.44/3,393.65
  6. Step 6: Final answer
    x = 3,440.66

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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.