Home / 1,872.32-2,584.91-1,664.74

Finding the Fourth Proportional to 1,872.32, 2,584.91 and 1,664.74

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Solution

The fourth proportional to 1,872.32, 2,584.91 and 1,664.74 is: 2,298.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.32 : 2,584.91 = 1,664.74 : x
  2. Step 2: Convert to fraction form
    1,872.32/2,584.91 = 1,664.74/x
  3. Step 3: Cross multiply
    1,872.32x = 2,584.91 × 1,664.74
  4. Step 4: Simplify right side
    1,872.32x = 4,303,194.75
  5. Step 5: Solve for x
    x = 4,303,194.75/1,872.32
  6. Step 6: Final answer
    x = 2,298.33

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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.