Home / 2,405.51-3,319.44-1,383.49

Finding the Fourth Proportional to 2,405.51, 3,319.44 and 1,383.49

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Solution

The fourth proportional to 2,405.51, 3,319.44 and 1,383.49 is: 1,909.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.51 : 3,319.44 = 1,383.49 : x
  2. Step 2: Convert to fraction form
    2,405.51/3,319.44 = 1,383.49/x
  3. Step 3: Cross multiply
    2,405.51x = 3,319.44 × 1,383.49
  4. Step 4: Simplify right side
    2,405.51x = 4,592,412.05
  5. Step 5: Solve for x
    x = 4,592,412.05/2,405.51
  6. Step 6: Final answer
    x = 1,909.12

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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.