Home / 2,049.85-2,828.81-1,118.35

Finding the Fourth Proportional to 2,049.85, 2,828.81 and 1,118.35

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Solution

The fourth proportional to 2,049.85, 2,828.81 and 1,118.35 is: 1,543.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,049.85 : 2,828.81 = 1,118.35 : x
  2. Step 2: Convert to fraction form
    2,049.85/2,828.81 = 1,118.35/x
  3. Step 3: Cross multiply
    2,049.85x = 2,828.81 × 1,118.35
  4. Step 4: Simplify right side
    2,049.85x = 3,163,599.66
  5. Step 5: Solve for x
    x = 3,163,599.66/2,049.85
  6. Step 6: Final answer
    x = 1,543.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.