Home / 1,646.48-2,272.20-1,087.44

Finding the Fourth Proportional to 1,646.48, 2,272.20 and 1,087.44

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Solution

The fourth proportional to 1,646.48, 2,272.20 and 1,087.44 is: 1,500.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.48 : 2,272.20 = 1,087.44 : x
  2. Step 2: Convert to fraction form
    1,646.48/2,272.20 = 1,087.44/x
  3. Step 3: Cross multiply
    1,646.48x = 2,272.20 × 1,087.44
  4. Step 4: Simplify right side
    1,646.48x = 2,470,881.17
  5. Step 5: Solve for x
    x = 2,470,881.17/1,646.48
  6. Step 6: Final answer
    x = 1,500.71

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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.