Home / 2,913.91-4,021.62-1,719.11

Finding the Fourth Proportional to 2,913.91, 4,021.62 and 1,719.11

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Solution

The fourth proportional to 2,913.91, 4,021.62 and 1,719.11 is: 2,372.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.91 : 4,021.62 = 1,719.11 : x
  2. Step 2: Convert to fraction form
    2,913.91/4,021.62 = 1,719.11/x
  3. Step 3: Cross multiply
    2,913.91x = 4,021.62 × 1,719.11
  4. Step 4: Simplify right side
    2,913.91x = 6,913,607.16
  5. Step 5: Solve for x
    x = 6,913,607.16/2,913.91
  6. Step 6: Final answer
    x = 2,372.62

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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.