Home / 2,405.18-3,319.44-1,521.88

Finding the Fourth Proportional to 2,405.18, 3,319.44 and 1,521.88

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Solution

The fourth proportional to 2,405.18, 3,319.44 and 1,521.88 is: 2,100.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.18 : 3,319.44 = 1,521.88 : x
  2. Step 2: Convert to fraction form
    2,405.18/3,319.44 = 1,521.88/x
  3. Step 3: Cross multiply
    2,405.18x = 3,319.44 × 1,521.88
  4. Step 4: Simplify right side
    2,405.18x = 5,051,789.35
  5. Step 5: Solve for x
    x = 5,051,789.35/2,405.18
  6. Step 6: Final answer
    x = 2,100.38

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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.