Home / 5,417.19-8,112.81-2,945.88

Finding the Fourth Proportional to 5,417.19, 8,112.81 and 2,945.88

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Solution

The fourth proportional to 5,417.19, 8,112.81 and 2,945.88 is: 4,411.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.19 : 8,112.81 = 2,945.88 : x
  2. Step 2: Convert to fraction form
    5,417.19/8,112.81 = 2,945.88/x
  3. Step 3: Cross multiply
    5,417.19x = 8,112.81 × 2,945.88
  4. Step 4: Simplify right side
    5,417.19x = 23,899,364.72
  5. Step 5: Solve for x
    x = 23,899,364.72/5,417.19
  6. Step 6: Final answer
    x = 4,411.76

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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.