Home / 1,626.22-2,440.05-1,187.88

Finding the Fourth Proportional to 1,626.22, 2,440.05 and 1,187.88

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Solution

The fourth proportional to 1,626.22, 2,440.05 and 1,187.88 is: 1,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.22 : 2,440.05 = 1,187.88 : x
  2. Step 2: Convert to fraction form
    1,626.22/2,440.05 = 1,187.88/x
  3. Step 3: Cross multiply
    1,626.22x = 2,440.05 × 1,187.88
  4. Step 4: Simplify right side
    1,626.22x = 2,898,486.59
  5. Step 5: Solve for x
    x = 2,898,486.59/1,626.22
  6. Step 6: Final answer
    x = 1,782.35

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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.