Home / 5,407.32-8,109.84-2,632.80

Finding the Fourth Proportional to 5,407.32, 8,109.84 and 2,632.80

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Solution

The fourth proportional to 5,407.32, 8,109.84 and 2,632.80 is: 3,948.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.32 : 8,109.84 = 2,632.80 : x
  2. Step 2: Convert to fraction form
    5,407.32/8,109.84 = 2,632.80/x
  3. Step 3: Cross multiply
    5,407.32x = 8,109.84 × 2,632.80
  4. Step 4: Simplify right side
    5,407.32x = 21,351,586.75
  5. Step 5: Solve for x
    x = 21,351,586.75/5,407.32
  6. Step 6: Final answer
    x = 3,948.64

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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.