Home / 1,410.26-2,116.20-1,138.10

Finding the Fourth Proportional to 1,410.26, 2,116.20 and 1,138.10

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Solution

The fourth proportional to 1,410.26, 2,116.20 and 1,138.10 is: 1,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.26 : 2,116.20 = 1,138.10 : x
  2. Step 2: Convert to fraction form
    1,410.26/2,116.20 = 1,138.10/x
  3. Step 3: Cross multiply
    1,410.26x = 2,116.20 × 1,138.10
  4. Step 4: Simplify right side
    1,410.26x = 2,408,447.22
  5. Step 5: Solve for x
    x = 2,408,447.22/1,410.26
  6. Step 6: Final answer
    x = 1,707.80

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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.