Home / 5,479.60-8,220.92-1,584.40

Finding the Fourth Proportional to 5,479.60, 8,220.92 and 1,584.40

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Solution

The fourth proportional to 5,479.60, 8,220.92 and 1,584.40 is: 2,377.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.60 : 8,220.92 = 1,584.40 : x
  2. Step 2: Convert to fraction form
    5,479.60/8,220.92 = 1,584.40/x
  3. Step 3: Cross multiply
    5,479.60x = 8,220.92 × 1,584.40
  4. Step 4: Simplify right side
    5,479.60x = 13,025,225.65
  5. Step 5: Solve for x
    x = 13,025,225.65/5,479.60
  6. Step 6: Final answer
    x = 2,377.04

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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.