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Finding the Fourth Proportional to 5,479.74, 8,220.06 and 1,584.18

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Solution

The fourth proportional to 5,479.74, 8,220.06 and 1,584.18 is: 2,376.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.74 : 8,220.06 = 1,584.18 : x
  2. Step 2: Convert to fraction form
    5,479.74/8,220.06 = 1,584.18/x
  3. Step 3: Cross multiply
    5,479.74x = 8,220.06 × 1,584.18
  4. Step 4: Simplify right side
    5,479.74x = 13,022,054.65
  5. Step 5: Solve for x
    x = 13,022,054.65/5,479.74
  6. Step 6: Final answer
    x = 2,376.40

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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.