Home / 5,411.25-8,109.88-2,776.57

Finding the Fourth Proportional to 5,411.25, 8,109.88 and 2,776.57

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Solution

The fourth proportional to 5,411.25, 8,109.88 and 2,776.57 is: 4,161.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.25 : 8,109.88 = 2,776.57 : x
  2. Step 2: Convert to fraction form
    5,411.25/8,109.88 = 2,776.57/x
  3. Step 3: Cross multiply
    5,411.25x = 8,109.88 × 2,776.57
  4. Step 4: Simplify right side
    5,411.25x = 22,517,649.51
  5. Step 5: Solve for x
    x = 22,517,649.51/5,411.25
  6. Step 6: Final answer
    x = 4,161.27

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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.