Home / 1,605.15-2,407.73-1,282.57

Finding the Fourth Proportional to 1,605.15, 2,407.73 and 1,282.57

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Solution

The fourth proportional to 1,605.15, 2,407.73 and 1,282.57 is: 1,923.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605.15 : 2,407.73 = 1,282.57 : x
  2. Step 2: Convert to fraction form
    1,605.15/2,407.73 = 1,282.57/x
  3. Step 3: Cross multiply
    1,605.15x = 2,407.73 × 1,282.57
  4. Step 4: Simplify right side
    1,605.15x = 3,088,069.83
  5. Step 5: Solve for x
    x = 3,088,069.83/1,605.15
  6. Step 6: Final answer
    x = 1,923.85

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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.