Home / 4,287.23-6,431.31-1,364.86

Finding the Fourth Proportional to 4,287.23, 6,431.31 and 1,364.86

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Solution

The fourth proportional to 4,287.23, 6,431.31 and 1,364.86 is: 2,047.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.23 : 6,431.31 = 1,364.86 : x
  2. Step 2: Convert to fraction form
    4,287.23/6,431.31 = 1,364.86/x
  3. Step 3: Cross multiply
    4,287.23x = 6,431.31 × 1,364.86
  4. Step 4: Simplify right side
    4,287.23x = 8,777,821.69
  5. Step 5: Solve for x
    x = 8,777,821.69/4,287.23
  6. Step 6: Final answer
    x = 2,047.44

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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.