Home / 4,249.50-6,386.40-4,225.20

Finding the Fourth Proportional to 4,249.50, 6,386.40 and 4,225.20

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Solution

The fourth proportional to 4,249.50, 6,386.40 and 4,225.20 is: 6,349.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,249.50 : 6,386.40 = 4,225.20 : x
  2. Step 2: Convert to fraction form
    4,249.50/6,386.40 = 4,225.20/x
  3. Step 3: Cross multiply
    4,249.50x = 6,386.40 × 4,225.20
  4. Step 4: Simplify right side
    4,249.50x = 26,983,817.28
  5. Step 5: Solve for x
    x = 26,983,817.28/4,249.50
  6. Step 6: Final answer
    x = 6,349.88

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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.