Home / 5,513.96-8,272.32-1,816.40

Finding the Fourth Proportional to 5,513.96, 8,272.32 and 1,816.40

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Solution

The fourth proportional to 5,513.96, 8,272.32 and 1,816.40 is: 2,725.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,513.96 : 8,272.32 = 1,816.40 : x
  2. Step 2: Convert to fraction form
    5,513.96/8,272.32 = 1,816.40/x
  3. Step 3: Cross multiply
    5,513.96x = 8,272.32 × 1,816.40
  4. Step 4: Simplify right side
    5,513.96x = 15,025,842.05
  5. Step 5: Solve for x
    x = 15,025,842.05/5,513.96
  6. Step 6: Final answer
    x = 2,725.05

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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.