Home / 1,705.32-2,351.97-1,145.61

Finding the Fourth Proportional to 1,705.32, 2,351.97 and 1,145.61

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Solution

The fourth proportional to 1,705.32, 2,351.97 and 1,145.61 is: 1,580.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.32 : 2,351.97 = 1,145.61 : x
  2. Step 2: Convert to fraction form
    1,705.32/2,351.97 = 1,145.61/x
  3. Step 3: Cross multiply
    1,705.32x = 2,351.97 × 1,145.61
  4. Step 4: Simplify right side
    1,705.32x = 2,694,440.35
  5. Step 5: Solve for x
    x = 2,694,440.35/1,705.32
  6. Step 6: Final answer
    x = 1,580.02

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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.