Home / 5,487.79-7,571.24-3,808.75

Finding the Fourth Proportional to 5,487.79, 7,571.24 and 3,808.75

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Solution

The fourth proportional to 5,487.79, 7,571.24 and 3,808.75 is: 5,254.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.79 : 7,571.24 = 3,808.75 : x
  2. Step 2: Convert to fraction form
    5,487.79/7,571.24 = 3,808.75/x
  3. Step 3: Cross multiply
    5,487.79x = 7,571.24 × 3,808.75
  4. Step 4: Simplify right side
    5,487.79x = 28,836,941.31
  5. Step 5: Solve for x
    x = 28,836,941.31/5,487.79
  6. Step 6: Final answer
    x = 5,254.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.