Home / 2,345.20-3,236.59-1,297.46

Finding the Fourth Proportional to 2,345.20, 3,236.59 and 1,297.46

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Solution

The fourth proportional to 2,345.20, 3,236.59 and 1,297.46 is: 1,790.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.20 : 3,236.59 = 1,297.46 : x
  2. Step 2: Convert to fraction form
    2,345.20/3,236.59 = 1,297.46/x
  3. Step 3: Cross multiply
    2,345.20x = 3,236.59 × 1,297.46
  4. Step 4: Simplify right side
    2,345.20x = 4,199,346.06
  5. Step 5: Solve for x
    x = 4,199,346.06/2,345.20
  6. Step 6: Final answer
    x = 1,790.61

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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.