Home / 5,623.12-8,378.56-5,371.60

Finding the Fourth Proportional to 5,623.12, 8,378.56 and 5,371.60

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Solution

The fourth proportional to 5,623.12, 8,378.56 and 5,371.60 is: 8,003.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,623.12 : 8,378.56 = 5,371.60 : x
  2. Step 2: Convert to fraction form
    5,623.12/8,378.56 = 5,371.60/x
  3. Step 3: Cross multiply
    5,623.12x = 8,378.56 × 5,371.60
  4. Step 4: Simplify right side
    5,623.12x = 45,006,272.90
  5. Step 5: Solve for x
    x = 45,006,272.90/5,623.12
  6. Step 6: Final answer
    x = 8,003.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.