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Finding the Fourth Proportional to 5,388.09, 8,074.76 and 4,070.76

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Solution

The fourth proportional to 5,388.09, 8,074.76 and 4,070.76 is: 6,100.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.09 : 8,074.76 = 4,070.76 : x
  2. Step 2: Convert to fraction form
    5,388.09/8,074.76 = 4,070.76/x
  3. Step 3: Cross multiply
    5,388.09x = 8,074.76 × 4,070.76
  4. Step 4: Simplify right side
    5,388.09x = 32,870,420.19
  5. Step 5: Solve for x
    x = 32,870,420.19/5,388.09
  6. Step 6: Final answer
    x = 6,100.57

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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.