Home / 1,266.30-1,747.44-706.84

Finding the Fourth Proportional to 1,266.30, 1,747.44 and 706.84

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Solution

The fourth proportional to 1,266.30, 1,747.44 and 706.84 is: 975.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266.30 : 1,747.44 = 706.84 : x
  2. Step 2: Convert to fraction form
    1,266.30/1,747.44 = 706.84/x
  3. Step 3: Cross multiply
    1,266.30x = 1,747.44 × 706.84
  4. Step 4: Simplify right side
    1,266.30x = 1,235,160.49
  5. Step 5: Solve for x
    x = 1,235,160.49/1,266.30
  6. Step 6: Final answer
    x = 975.41

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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.