Home / 3,431.79-5,146.65-1,457.38

Finding the Fourth Proportional to 3,431.79, 5,146.65 and 1,457.38

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Solution

The fourth proportional to 3,431.79, 5,146.65 and 1,457.38 is: 2,185.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.79 : 5,146.65 = 1,457.38 : x
  2. Step 2: Convert to fraction form
    3,431.79/5,146.65 = 1,457.38/x
  3. Step 3: Cross multiply
    3,431.79x = 5,146.65 × 1,457.38
  4. Step 4: Simplify right side
    3,431.79x = 7,500,624.78
  5. Step 5: Solve for x
    x = 7,500,624.78/3,431.79
  6. Step 6: Final answer
    x = 2,185.63

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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.