Home / 1,686.26-2,530.37-1,505.83

Finding the Fourth Proportional to 1,686.26, 2,530.37 and 1,505.83

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Solution

The fourth proportional to 1,686.26, 2,530.37 and 1,505.83 is: 2,259.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.26 : 2,530.37 = 1,505.83 : x
  2. Step 2: Convert to fraction form
    1,686.26/2,530.37 = 1,505.83/x
  3. Step 3: Cross multiply
    1,686.26x = 2,530.37 × 1,505.83
  4. Step 4: Simplify right side
    1,686.26x = 3,810,307.06
  5. Step 5: Solve for x
    x = 3,810,307.06/1,686.26
  6. Step 6: Final answer
    x = 2,259.62

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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.