Home / 2,208.40-3,312.96-1,232.40

Finding the Fourth Proportional to 2,208.40, 3,312.96 and 1,232.40

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Solution

The fourth proportional to 2,208.40, 3,312.96 and 1,232.40 is: 1,848.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.40 : 3,312.96 = 1,232.40 : x
  2. Step 2: Convert to fraction form
    2,208.40/3,312.96 = 1,232.40/x
  3. Step 3: Cross multiply
    2,208.40x = 3,312.96 × 1,232.40
  4. Step 4: Simplify right side
    2,208.40x = 4,082,891.90
  5. Step 5: Solve for x
    x = 4,082,891.90/2,208.40
  6. Step 6: Final answer
    x = 1,848.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.