Home / 1,454.80-2,185-1,247.04

Finding the Fourth Proportional to 1,454.80, 2,185 and 1,247.04

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Solution

The fourth proportional to 1,454.80, 2,185 and 1,247.04 is: 1,872.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454.80 : 2,185 = 1,247.04 : x
  2. Step 2: Convert to fraction form
    1,454.80/2,185 = 1,247.04/x
  3. Step 3: Cross multiply
    1,454.80x = 2,185 × 1,247.04
  4. Step 4: Simplify right side
    1,454.80x = 2,724,782.40
  5. Step 5: Solve for x
    x = 2,724,782.40/1,454.80
  6. Step 6: Final answer
    x = 1,872.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.