Home / 5,647.12-8,474.40-2,528.80

Finding the Fourth Proportional to 5,647.12, 8,474.40 and 2,528.80

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Solution

The fourth proportional to 5,647.12, 8,474.40 and 2,528.80 is: 3,794.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,647.12 : 8,474.40 = 2,528.80 : x
  2. Step 2: Convert to fraction form
    5,647.12/8,474.40 = 2,528.80/x
  3. Step 3: Cross multiply
    5,647.12x = 8,474.40 × 2,528.80
  4. Step 4: Simplify right side
    5,647.12x = 21,430,062.72
  5. Step 5: Solve for x
    x = 21,430,062.72/5,647.12
  6. Step 6: Final answer
    x = 3,794.87

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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.