Home / 5,421.38-8,125.32-2,916.41

Finding the Fourth Proportional to 5,421.38, 8,125.32 and 2,916.41

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Solution

The fourth proportional to 5,421.38, 8,125.32 and 2,916.41 is: 4,370.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.38 : 8,125.32 = 2,916.41 : x
  2. Step 2: Convert to fraction form
    5,421.38/8,125.32 = 2,916.41/x
  3. Step 3: Cross multiply
    5,421.38x = 8,125.32 × 2,916.41
  4. Step 4: Simplify right side
    5,421.38x = 23,696,764.50
  5. Step 5: Solve for x
    x = 23,696,764.50/5,421.38
  6. Step 6: Final answer
    x = 4,370.98

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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.