Home / 1,673.60-2,500.81-1,276.08

Finding the Fourth Proportional to 1,673.60, 2,500.81 and 1,276.08

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Solution

The fourth proportional to 1,673.60, 2,500.81 and 1,276.08 is: 1,906.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673.60 : 2,500.81 = 1,276.08 : x
  2. Step 2: Convert to fraction form
    1,673.60/2,500.81 = 1,276.08/x
  3. Step 3: Cross multiply
    1,673.60x = 2,500.81 × 1,276.08
  4. Step 4: Simplify right side
    1,673.60x = 3,191,233.62
  5. Step 5: Solve for x
    x = 3,191,233.62/1,673.60
  6. Step 6: Final answer
    x = 1,906.81

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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.