Home / 1,834.40-2,746.20-1,618.40

Finding the Fourth Proportional to 1,834.40, 2,746.20 and 1,618.40

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Solution

The fourth proportional to 1,834.40, 2,746.20 and 1,618.40 is: 2,422.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,834.40 : 2,746.20 = 1,618.40 : x
  2. Step 2: Convert to fraction form
    1,834.40/2,746.20 = 1,618.40/x
  3. Step 3: Cross multiply
    1,834.40x = 2,746.20 × 1,618.40
  4. Step 4: Simplify right side
    1,834.40x = 4,444,450.08
  5. Step 5: Solve for x
    x = 4,444,450.08/1,834.40
  6. Step 6: Final answer
    x = 2,422.84

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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.