Home / 3,368.50-5,051.97-1,287.76

Finding the Fourth Proportional to 3,368.50, 5,051.97 and 1,287.76

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Solution

The fourth proportional to 3,368.50, 5,051.97 and 1,287.76 is: 1,931.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.50 : 5,051.97 = 1,287.76 : x
  2. Step 2: Convert to fraction form
    3,368.50/5,051.97 = 1,287.76/x
  3. Step 3: Cross multiply
    3,368.50x = 5,051.97 × 1,287.76
  4. Step 4: Simplify right side
    3,368.50x = 6,505,724.89
  5. Step 5: Solve for x
    x = 6,505,724.89/3,368.50
  6. Step 6: Final answer
    x = 1,931.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.