Home / 1,585.80-2,186.46-1,385.82

Finding the Fourth Proportional to 1,585.80, 2,186.46 and 1,385.82

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Solution

The fourth proportional to 1,585.80, 2,186.46 and 1,385.82 is: 1,910.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585.80 : 2,186.46 = 1,385.82 : x
  2. Step 2: Convert to fraction form
    1,585.80/2,186.46 = 1,385.82/x
  3. Step 3: Cross multiply
    1,585.80x = 2,186.46 × 1,385.82
  4. Step 4: Simplify right side
    1,585.80x = 3,030,040.00
  5. Step 5: Solve for x
    x = 3,030,040.00/1,585.80
  6. Step 6: Final answer
    x = 1,910.73

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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.