Home / 2,811.24-4,217.36-1,056.20

Finding the Fourth Proportional to 2,811.24, 4,217.36 and 1,056.20

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Solution

The fourth proportional to 2,811.24, 4,217.36 and 1,056.20 is: 1,584.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.24 : 4,217.36 = 1,056.20 : x
  2. Step 2: Convert to fraction form
    2,811.24/4,217.36 = 1,056.20/x
  3. Step 3: Cross multiply
    2,811.24x = 4,217.36 × 1,056.20
  4. Step 4: Simplify right side
    2,811.24x = 4,454,349.26
  5. Step 5: Solve for x
    x = 4,454,349.26/2,811.24
  6. Step 6: Final answer
    x = 1,584.48

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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.