Home / 5,364.12-8,045.87-3,186.71

Finding the Fourth Proportional to 5,364.12, 8,045.87 and 3,186.71

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Solution

The fourth proportional to 5,364.12, 8,045.87 and 3,186.71 is: 4,779.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,364.12 : 8,045.87 = 3,186.71 : x
  2. Step 2: Convert to fraction form
    5,364.12/8,045.87 = 3,186.71/x
  3. Step 3: Cross multiply
    5,364.12x = 8,045.87 × 3,186.71
  4. Step 4: Simplify right side
    5,364.12x = 25,639,828.40
  5. Step 5: Solve for x
    x = 25,639,828.40/5,364.12
  6. Step 6: Final answer
    x = 4,779.87

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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.