Home / 4,391.90-6,590.45-1,620.52

Finding the Fourth Proportional to 4,391.90, 6,590.45 and 1,620.52

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Solution

The fourth proportional to 4,391.90, 6,590.45 and 1,620.52 is: 2,431.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,391.90 : 6,590.45 = 1,620.52 : x
  2. Step 2: Convert to fraction form
    4,391.90/6,590.45 = 1,620.52/x
  3. Step 3: Cross multiply
    4,391.90x = 6,590.45 × 1,620.52
  4. Step 4: Simplify right side
    4,391.90x = 10,679,956.03
  5. Step 5: Solve for x
    x = 10,679,956.03/4,391.90
  6. Step 6: Final answer
    x = 2,431.74

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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.