Home / 1,257.20-1,736.59-966.07

Finding the Fourth Proportional to 1,257.20, 1,736.59 and 966.07

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Solution

The fourth proportional to 1,257.20, 1,736.59 and 966.07 is: 1,334.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257.20 : 1,736.59 = 966.07 : x
  2. Step 2: Convert to fraction form
    1,257.20/1,736.59 = 966.07/x
  3. Step 3: Cross multiply
    1,257.20x = 1,736.59 × 966.07
  4. Step 4: Simplify right side
    1,257.20x = 1,677,667.50
  5. Step 5: Solve for x
    x = 1,677,667.50/1,257.20
  6. Step 6: Final answer
    x = 1,334.45

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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.