Home / 1,260.10-1,738.99-700.57

Finding the Fourth Proportional to 1,260.10, 1,738.99 and 700.57

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Solution

The fourth proportional to 1,260.10, 1,738.99 and 700.57 is: 966.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.10 : 1,738.99 = 700.57 : x
  2. Step 2: Convert to fraction form
    1,260.10/1,738.99 = 700.57/x
  3. Step 3: Cross multiply
    1,260.10x = 1,738.99 × 700.57
  4. Step 4: Simplify right side
    1,260.10x = 1,218,284.22
  5. Step 5: Solve for x
    x = 1,218,284.22/1,260.10
  6. Step 6: Final answer
    x = 966.82

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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.