Home / 1,260.15-1,739.11-700.60

Finding the Fourth Proportional to 1,260.15, 1,739.11 and 700.60

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Solution

The fourth proportional to 1,260.15, 1,739.11 and 700.60 is: 966.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.15 : 1,739.11 = 700.60 : x
  2. Step 2: Convert to fraction form
    1,260.15/1,739.11 = 700.60/x
  3. Step 3: Cross multiply
    1,260.15x = 1,739.11 × 700.60
  4. Step 4: Simplify right side
    1,260.15x = 1,218,425.80
  5. Step 5: Solve for x
    x = 1,218,425.80/1,260.15
  6. Step 6: Final answer
    x = 966.89

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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.