Home / 1,133.40-1,562.22-895.80

Finding the Fourth Proportional to 1,133.40, 1,562.22 and 895.80

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Solution

The fourth proportional to 1,133.40, 1,562.22 and 895.80 is: 1,234.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.40 : 1,562.22 = 895.80 : x
  2. Step 2: Convert to fraction form
    1,133.40/1,562.22 = 895.80/x
  3. Step 3: Cross multiply
    1,133.40x = 1,562.22 × 895.80
  4. Step 4: Simplify right side
    1,133.40x = 1,399,436.68
  5. Step 5: Solve for x
    x = 1,399,436.68/1,133.40
  6. Step 6: Final answer
    x = 1,234.72

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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.