Home / 1,259.81-1,738.50-700.28

Finding the Fourth Proportional to 1,259.81, 1,738.50 and 700.28

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Solution

The fourth proportional to 1,259.81, 1,738.50 and 700.28 is: 966.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259.81 : 1,738.50 = 700.28 : x
  2. Step 2: Convert to fraction form
    1,259.81/1,738.50 = 700.28/x
  3. Step 3: Cross multiply
    1,259.81x = 1,738.50 × 700.28
  4. Step 4: Simplify right side
    1,259.81x = 1,217,428.09
  5. Step 5: Solve for x
    x = 1,217,428.09/1,259.81
  6. Step 6: Final answer
    x = 966.36

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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.