Home / 1,826.81-2,520.22-1,118.39

Finding the Fourth Proportional to 1,826.81, 2,520.22 and 1,118.39

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Solution

The fourth proportional to 1,826.81, 2,520.22 and 1,118.39 is: 1,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,826.81 : 2,520.22 = 1,118.39 : x
  2. Step 2: Convert to fraction form
    1,826.81/2,520.22 = 1,118.39/x
  3. Step 3: Cross multiply
    1,826.81x = 2,520.22 × 1,118.39
  4. Step 4: Simplify right side
    1,826.81x = 2,818,588.85
  5. Step 5: Solve for x
    x = 2,818,588.85/1,826.81
  6. Step 6: Final answer
    x = 1,542.90

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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.