Home / 1,259.80-1,738.56-700.36

Finding the Fourth Proportional to 1,259.80, 1,738.56 and 700.36

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Solution

The fourth proportional to 1,259.80, 1,738.56 and 700.36 is: 966.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259.80 : 1,738.56 = 700.36 : x
  2. Step 2: Convert to fraction form
    1,259.80/1,738.56 = 700.36/x
  3. Step 3: Cross multiply
    1,259.80x = 1,738.56 × 700.36
  4. Step 4: Simplify right side
    1,259.80x = 1,217,617.88
  5. Step 5: Solve for x
    x = 1,217,617.88/1,259.80
  6. Step 6: Final answer
    x = 966.52

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1.5x scale

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.