Home / 4,191.28-6,288.36-1,418.24

Finding the Fourth Proportional to 4,191.28, 6,288.36 and 1,418.24

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Solution

The fourth proportional to 4,191.28, 6,288.36 and 1,418.24 is: 2,127.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.28 : 6,288.36 = 1,418.24 : x
  2. Step 2: Convert to fraction form
    4,191.28/6,288.36 = 1,418.24/x
  3. Step 3: Cross multiply
    4,191.28x = 6,288.36 × 1,418.24
  4. Step 4: Simplify right side
    4,191.28x = 8,918,403.69
  5. Step 5: Solve for x
    x = 8,918,403.69/4,191.28
  6. Step 6: Final answer
    x = 2,127.85

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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.