Home / 1,590.12-2,383.20-1,425.96

Finding the Fourth Proportional to 1,590.12, 2,383.20 and 1,425.96

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Solution

The fourth proportional to 1,590.12, 2,383.20 and 1,425.96 is: 2,137.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.12 : 2,383.20 = 1,425.96 : x
  2. Step 2: Convert to fraction form
    1,590.12/2,383.20 = 1,425.96/x
  3. Step 3: Cross multiply
    1,590.12x = 2,383.20 × 1,425.96
  4. Step 4: Simplify right side
    1,590.12x = 3,398,347.87
  5. Step 5: Solve for x
    x = 3,398,347.87/1,590.12
  6. Step 6: Final answer
    x = 2,137.16

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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.