Home / 1,869.83-2,580.75-1,073.28

Finding the Fourth Proportional to 1,869.83, 2,580.75 and 1,073.28

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Solution

The fourth proportional to 1,869.83, 2,580.75 and 1,073.28 is: 1,481.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.83 : 2,580.75 = 1,073.28 : x
  2. Step 2: Convert to fraction form
    1,869.83/2,580.75 = 1,073.28/x
  3. Step 3: Cross multiply
    1,869.83x = 2,580.75 × 1,073.28
  4. Step 4: Simplify right side
    1,869.83x = 2,769,867.36
  5. Step 5: Solve for x
    x = 2,769,867.36/1,869.83
  6. Step 6: Final answer
    x = 1,481.35

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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.