Home / 2,930.81-4,044.78-1,672.17

Finding the Fourth Proportional to 2,930.81, 4,044.78 and 1,672.17

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Solution

The fourth proportional to 2,930.81, 4,044.78 and 1,672.17 is: 2,307.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.81 : 4,044.78 = 1,672.17 : x
  2. Step 2: Convert to fraction form
    2,930.81/4,044.78 = 1,672.17/x
  3. Step 3: Cross multiply
    2,930.81x = 4,044.78 × 1,672.17
  4. Step 4: Simplify right side
    2,930.81x = 6,763,559.77
  5. Step 5: Solve for x
    x = 6,763,559.77/2,930.81
  6. Step 6: Final answer
    x = 2,307.75

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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.