Home / 4,423.78-6,636.12-1,261.24

Finding the Fourth Proportional to 4,423.78, 6,636.12 and 1,261.24

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Solution

The fourth proportional to 4,423.78, 6,636.12 and 1,261.24 is: 1,891.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,423.78 : 6,636.12 = 1,261.24 : x
  2. Step 2: Convert to fraction form
    4,423.78/6,636.12 = 1,261.24/x
  3. Step 3: Cross multiply
    4,423.78x = 6,636.12 × 1,261.24
  4. Step 4: Simplify right side
    4,423.78x = 8,369,739.99
  5. Step 5: Solve for x
    x = 8,369,739.99/4,423.78
  6. Step 6: Final answer
    x = 1,891.99

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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.