Home / 5,479.44-8,220.40-1,584.16

Finding the Fourth Proportional to 5,479.44, 8,220.40 and 1,584.16

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Solution

The fourth proportional to 5,479.44, 8,220.40 and 1,584.16 is: 2,376.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.44 : 8,220.40 = 1,584.16 : x
  2. Step 2: Convert to fraction form
    5,479.44/8,220.40 = 1,584.16/x
  3. Step 3: Cross multiply
    5,479.44x = 8,220.40 × 1,584.16
  4. Step 4: Simplify right side
    5,479.44x = 13,022,428.86
  5. Step 5: Solve for x
    x = 13,022,428.86/5,479.44
  6. Step 6: Final answer
    x = 2,376.60

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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.