Home / 2,345.40-3,236.34-1,297.32

Finding the Fourth Proportional to 2,345.40, 3,236.34 and 1,297.32

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Solution

The fourth proportional to 2,345.40, 3,236.34 and 1,297.32 is: 1,790.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.40 : 3,236.34 = 1,297.32 : x
  2. Step 2: Convert to fraction form
    2,345.40/3,236.34 = 1,297.32/x
  3. Step 3: Cross multiply
    2,345.40x = 3,236.34 × 1,297.32
  4. Step 4: Simplify right side
    2,345.40x = 4,198,568.61
  5. Step 5: Solve for x
    x = 4,198,568.61/2,345.40
  6. Step 6: Final answer
    x = 1,790.13

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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.