Home / 5,418.20-8,127.30-4,554.20

Finding the Fourth Proportional to 5,418.20, 8,127.30 and 4,554.20

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Solution

The fourth proportional to 5,418.20, 8,127.30 and 4,554.20 is: 6,831.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.20 : 8,127.30 = 4,554.20 : x
  2. Step 2: Convert to fraction form
    5,418.20/8,127.30 = 4,554.20/x
  3. Step 3: Cross multiply
    5,418.20x = 8,127.30 × 4,554.20
  4. Step 4: Simplify right side
    5,418.20x = 37,013,349.66
  5. Step 5: Solve for x
    x = 37,013,349.66/5,418.20
  6. Step 6: Final answer
    x = 6,831.30

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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.