Home / 2,330.12-3,215.52-1,282.16

Finding the Fourth Proportional to 2,330.12, 3,215.52 and 1,282.16

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Solution

The fourth proportional to 2,330.12, 3,215.52 and 1,282.16 is: 1,769.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.12 : 3,215.52 = 1,282.16 : x
  2. Step 2: Convert to fraction form
    2,330.12/3,215.52 = 1,282.16/x
  3. Step 3: Cross multiply
    2,330.12x = 3,215.52 × 1,282.16
  4. Step 4: Simplify right side
    2,330.12x = 4,122,811.12
  5. Step 5: Solve for x
    x = 4,122,811.12/2,330.12
  6. Step 6: Final answer
    x = 1,769.36

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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.