Home / 4,311.36-6,467.20-4,254.40

Finding the Fourth Proportional to 4,311.36, 6,467.20 and 4,254.40

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Solution

The fourth proportional to 4,311.36, 6,467.20 and 4,254.40 is: 6,381.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.36 : 6,467.20 = 4,254.40 : x
  2. Step 2: Convert to fraction form
    4,311.36/6,467.20 = 4,254.40/x
  3. Step 3: Cross multiply
    4,311.36x = 6,467.20 × 4,254.40
  4. Step 4: Simplify right side
    4,311.36x = 27,514,055.68
  5. Step 5: Solve for x
    x = 27,514,055.68/4,311.36
  6. Step 6: Final answer
    x = 6,381.76

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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.