Home / 5,725.84-8,571.47-5,178.28

Finding the Fourth Proportional to 5,725.84, 8,571.47 and 5,178.28

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Solution

The fourth proportional to 5,725.84, 8,571.47 and 5,178.28 is: 7,751.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,725.84 : 8,571.47 = 5,178.28 : x
  2. Step 2: Convert to fraction form
    5,725.84/8,571.47 = 5,178.28/x
  3. Step 3: Cross multiply
    5,725.84x = 8,571.47 × 5,178.28
  4. Step 4: Simplify right side
    5,725.84x = 44,385,471.67
  5. Step 5: Solve for x
    x = 44,385,471.67/5,725.84
  6. Step 6: Final answer
    x = 7,751.78

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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.