Home / 1,759.36-2,637.60-1,209.92

Finding the Fourth Proportional to 1,759.36, 2,637.60 and 1,209.92

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Solution

The fourth proportional to 1,759.36, 2,637.60 and 1,209.92 is: 1,813.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,759.36 : 2,637.60 = 1,209.92 : x
  2. Step 2: Convert to fraction form
    1,759.36/2,637.60 = 1,209.92/x
  3. Step 3: Cross multiply
    1,759.36x = 2,637.60 × 1,209.92
  4. Step 4: Simplify right side
    1,759.36x = 3,191,284.99
  5. Step 5: Solve for x
    x = 3,191,284.99/1,759.36
  6. Step 6: Final answer
    x = 1,813.89

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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.