Home / 1,195.24-1,649.36-697.80

Finding the Fourth Proportional to 1,195.24, 1,649.36 and 697.80

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Solution

The fourth proportional to 1,195.24, 1,649.36 and 697.80 is: 962.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.24 : 1,649.36 = 697.80 : x
  2. Step 2: Convert to fraction form
    1,195.24/1,649.36 = 697.80/x
  3. Step 3: Cross multiply
    1,195.24x = 1,649.36 × 697.80
  4. Step 4: Simplify right side
    1,195.24x = 1,150,923.41
  5. Step 5: Solve for x
    x = 1,150,923.41/1,195.24
  6. Step 6: Final answer
    x = 962.92

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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.