Home / 2,439.67-3,364.19-1,643.00

Finding the Fourth Proportional to 2,439.67, 3,364.19 and 1,643.00

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Solution

The fourth proportional to 2,439.67, 3,364.19 and 1,643.00 is: 2,265.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.67 : 3,364.19 = 1,643.00 : x
  2. Step 2: Convert to fraction form
    2,439.67/3,364.19 = 1,643.00/x
  3. Step 3: Cross multiply
    2,439.67x = 3,364.19 × 1,643.00
  4. Step 4: Simplify right side
    2,439.67x = 5,527,339.13
  5. Step 5: Solve for x
    x = 5,527,339.13/2,439.67
  6. Step 6: Final answer
    x = 2,265.61

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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.