Home / 2,943.52-4,415.28-1,399.84

Finding the Fourth Proportional to 2,943.52, 4,415.28 and 1,399.84

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Solution

The fourth proportional to 2,943.52, 4,415.28 and 1,399.84 is: 2,099.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.52 : 4,415.28 = 1,399.84 : x
  2. Step 2: Convert to fraction form
    2,943.52/4,415.28 = 1,399.84/x
  3. Step 3: Cross multiply
    2,943.52x = 4,415.28 × 1,399.84
  4. Step 4: Simplify right side
    2,943.52x = 6,180,685.56
  5. Step 5: Solve for x
    x = 6,180,685.56/2,943.52
  6. Step 6: Final answer
    x = 2,099.76

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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.