Home / 5,378.72-8,051.70-4,328.96

Finding the Fourth Proportional to 5,378.72, 8,051.70 and 4,328.96

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Solution

The fourth proportional to 5,378.72, 8,051.70 and 4,328.96 is: 6,480.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.72 : 8,051.70 = 4,328.96 : x
  2. Step 2: Convert to fraction form
    5,378.72/8,051.70 = 4,328.96/x
  3. Step 3: Cross multiply
    5,378.72x = 8,051.70 × 4,328.96
  4. Step 4: Simplify right side
    5,378.72x = 34,855,487.23
  5. Step 5: Solve for x
    x = 34,855,487.23/5,378.72
  6. Step 6: Final answer
    x = 6,480.26

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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.