Home / 2,590.60-3,882.30-1,665.64

Finding the Fourth Proportional to 2,590.60, 3,882.30 and 1,665.64

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Solution

The fourth proportional to 2,590.60, 3,882.30 and 1,665.64 is: 2,496.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590.60 : 3,882.30 = 1,665.64 : x
  2. Step 2: Convert to fraction form
    2,590.60/3,882.30 = 1,665.64/x
  3. Step 3: Cross multiply
    2,590.60x = 3,882.30 × 1,665.64
  4. Step 4: Simplify right side
    2,590.60x = 6,466,514.17
  5. Step 5: Solve for x
    x = 6,466,514.17/2,590.60
  6. Step 6: Final answer
    x = 2,496.15

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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.