Home / 2,945.58-4,420.89-1,711.28

Finding the Fourth Proportional to 2,945.58, 4,420.89 and 1,711.28

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Solution

The fourth proportional to 2,945.58, 4,420.89 and 1,711.28 is: 2,568.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.58 : 4,420.89 = 1,711.28 : x
  2. Step 2: Convert to fraction form
    2,945.58/4,420.89 = 1,711.28/x
  3. Step 3: Cross multiply
    2,945.58x = 4,420.89 × 1,711.28
  4. Step 4: Simplify right side
    2,945.58x = 7,565,358.53
  5. Step 5: Solve for x
    x = 7,565,358.53/2,945.58
  6. Step 6: Final answer
    x = 2,568.38

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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.