Home / 5,412.90-8,120.61-2,293.17

Finding the Fourth Proportional to 5,412.90, 8,120.61 and 2,293.17

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Solution

The fourth proportional to 5,412.90, 8,120.61 and 2,293.17 is: 3,440.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.90 : 8,120.61 = 2,293.17 : x
  2. Step 2: Convert to fraction form
    5,412.90/8,120.61 = 2,293.17/x
  3. Step 3: Cross multiply
    5,412.90x = 8,120.61 × 2,293.17
  4. Step 4: Simplify right side
    5,412.90x = 18,621,939.23
  5. Step 5: Solve for x
    x = 18,621,939.23/5,412.90
  6. Step 6: Final answer
    x = 3,440.29

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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.