Home / 1,827.12-2,521.20-1,163.70

Finding the Fourth Proportional to 1,827.12, 2,521.20 and 1,163.70

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Solution

The fourth proportional to 1,827.12, 2,521.20 and 1,163.70 is: 1,605.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,827.12 : 2,521.20 = 1,163.70 : x
  2. Step 2: Convert to fraction form
    1,827.12/2,521.20 = 1,163.70/x
  3. Step 3: Cross multiply
    1,827.12x = 2,521.20 × 1,163.70
  4. Step 4: Simplify right side
    1,827.12x = 2,933,920.44
  5. Step 5: Solve for x
    x = 2,933,920.44/1,827.12
  6. Step 6: Final answer
    x = 1,605.76

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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.