Home / 2,345.28-3,236.52-1,297.32

Finding the Fourth Proportional to 2,345.28, 3,236.52 and 1,297.32

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Solution

The fourth proportional to 2,345.28, 3,236.52 and 1,297.32 is: 1,790.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.28 : 3,236.52 = 1,297.32 : x
  2. Step 2: Convert to fraction form
    2,345.28/3,236.52 = 1,297.32/x
  3. Step 3: Cross multiply
    2,345.28x = 3,236.52 × 1,297.32
  4. Step 4: Simplify right side
    2,345.28x = 4,198,802.13
  5. Step 5: Solve for x
    x = 4,198,802.13/2,345.28
  6. Step 6: Final answer
    x = 1,790.32

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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.