Home / 1,811.48-2,705.76-1,445.22

Finding the Fourth Proportional to 1,811.48, 2,705.76 and 1,445.22

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Solution

The fourth proportional to 1,811.48, 2,705.76 and 1,445.22 is: 2,158.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.48 : 2,705.76 = 1,445.22 : x
  2. Step 2: Convert to fraction form
    1,811.48/2,705.76 = 1,445.22/x
  3. Step 3: Cross multiply
    1,811.48x = 2,705.76 × 1,445.22
  4. Step 4: Simplify right side
    1,811.48x = 3,910,418.47
  5. Step 5: Solve for x
    x = 3,910,418.47/1,811.48
  6. Step 6: Final answer
    x = 2,158.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.