Home / 5,520.25-8,280.38-1,416.25

Finding the Fourth Proportional to 5,520.25, 8,280.38 and 1,416.25

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Solution

The fourth proportional to 5,520.25, 8,280.38 and 1,416.25 is: 2,124.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.25 : 8,280.38 = 1,416.25 : x
  2. Step 2: Convert to fraction form
    5,520.25/8,280.38 = 1,416.25/x
  3. Step 3: Cross multiply
    5,520.25x = 8,280.38 × 1,416.25
  4. Step 4: Simplify right side
    5,520.25x = 11,727,088.18
  5. Step 5: Solve for x
    x = 11,727,088.18/5,520.25
  6. Step 6: Final answer
    x = 2,124.38

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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.