Home / 4,218.64-6,299.93-4,172.84

Finding the Fourth Proportional to 4,218.64, 6,299.93 and 4,172.84

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Solution

The fourth proportional to 4,218.64, 6,299.93 and 4,172.84 is: 6,231.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.64 : 6,299.93 = 4,172.84 : x
  2. Step 2: Convert to fraction form
    4,218.64/6,299.93 = 4,172.84/x
  3. Step 3: Cross multiply
    4,218.64x = 6,299.93 × 4,172.84
  4. Step 4: Simplify right side
    4,218.64x = 26,288,599.90
  5. Step 5: Solve for x
    x = 26,288,599.90/4,218.64
  6. Step 6: Final answer
    x = 6,231.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.