Home / 1,259.85-1,738.50-700.31

Finding the Fourth Proportional to 1,259.85, 1,738.50 and 700.31

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Solution

The fourth proportional to 1,259.85, 1,738.50 and 700.31 is: 966.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259.85 : 1,738.50 = 700.31 : x
  2. Step 2: Convert to fraction form
    1,259.85/1,738.50 = 700.31/x
  3. Step 3: Cross multiply
    1,259.85x = 1,738.50 × 700.31
  4. Step 4: Simplify right side
    1,259.85x = 1,217,480.24
  5. Step 5: Solve for x
    x = 1,217,480.24/1,259.85
  6. Step 6: Final answer
    x = 966.37

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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.