Home / 5,379.18-8,063.91-1,915.62

Finding the Fourth Proportional to 5,379.18, 8,063.91 and 1,915.62

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Solution

The fourth proportional to 5,379.18, 8,063.91 and 1,915.62 is: 2,871.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.18 : 8,063.91 = 1,915.62 : x
  2. Step 2: Convert to fraction form
    5,379.18/8,063.91 = 1,915.62/x
  3. Step 3: Cross multiply
    5,379.18x = 8,063.91 × 1,915.62
  4. Step 4: Simplify right side
    5,379.18x = 15,447,387.27
  5. Step 5: Solve for x
    x = 15,447,387.27/5,379.18
  6. Step 6: Final answer
    x = 2,871.70

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1.5x scale

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.