Home / 5,386.91-8,081.06-1,491.35

Finding the Fourth Proportional to 5,386.91, 8,081.06 and 1,491.35

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Solution

The fourth proportional to 5,386.91, 8,081.06 and 1,491.35 is: 2,237.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.91 : 8,081.06 = 1,491.35 : x
  2. Step 2: Convert to fraction form
    5,386.91/8,081.06 = 1,491.35/x
  3. Step 3: Cross multiply
    5,386.91x = 8,081.06 × 1,491.35
  4. Step 4: Simplify right side
    5,386.91x = 12,051,640.97
  5. Step 5: Solve for x
    x = 12,051,640.97/5,386.91
  6. Step 6: Final answer
    x = 2,237.21

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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.