Home / 5,631.81-8,447.72-1,527.81

Finding the Fourth Proportional to 5,631.81, 8,447.72 and 1,527.81

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Solution

The fourth proportional to 5,631.81, 8,447.72 and 1,527.81 is: 2,291.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.81 : 8,447.72 = 1,527.81 : x
  2. Step 2: Convert to fraction form
    5,631.81/8,447.72 = 1,527.81/x
  3. Step 3: Cross multiply
    5,631.81x = 8,447.72 × 1,527.81
  4. Step 4: Simplify right side
    5,631.81x = 12,906,511.09
  5. Step 5: Solve for x
    x = 12,906,511.09/5,631.81
  6. Step 6: Final answer
    x = 2,291.72

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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.