Home / 2,380.77-3,285.63-1,332.81

Finding the Fourth Proportional to 2,380.77, 3,285.63 and 1,332.81

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Solution

The fourth proportional to 2,380.77, 3,285.63 and 1,332.81 is: 1,839.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.77 : 3,285.63 = 1,332.81 : x
  2. Step 2: Convert to fraction form
    2,380.77/3,285.63 = 1,332.81/x
  3. Step 3: Cross multiply
    2,380.77x = 3,285.63 × 1,332.81
  4. Step 4: Simplify right side
    2,380.77x = 4,379,120.52
  5. Step 5: Solve for x
    x = 4,379,120.52/2,380.77
  6. Step 6: Final answer
    x = 1,839.37

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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.