Home / 5,456.80-8,185.20-4,002.40

Finding the Fourth Proportional to 5,456.80, 8,185.20 and 4,002.40

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Solution

The fourth proportional to 5,456.80, 8,185.20 and 4,002.40 is: 6,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.80 : 8,185.20 = 4,002.40 : x
  2. Step 2: Convert to fraction form
    5,456.80/8,185.20 = 4,002.40/x
  3. Step 3: Cross multiply
    5,456.80x = 8,185.20 × 4,002.40
  4. Step 4: Simplify right side
    5,456.80x = 32,760,444.48
  5. Step 5: Solve for x
    x = 32,760,444.48/5,456.80
  6. Step 6: Final answer
    x = 6,003.60

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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.