Home / 2,590.08-3,882.41-1,128.84

Finding the Fourth Proportional to 2,590.08, 3,882.41 and 1,128.84

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Solution

The fourth proportional to 2,590.08, 3,882.41 and 1,128.84 is: 1,692.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590.08 : 3,882.41 = 1,128.84 : x
  2. Step 2: Convert to fraction form
    2,590.08/3,882.41 = 1,128.84/x
  3. Step 3: Cross multiply
    2,590.08x = 3,882.41 × 1,128.84
  4. Step 4: Simplify right side
    2,590.08x = 4,382,619.70
  5. Step 5: Solve for x
    x = 4,382,619.70/2,590.08
  6. Step 6: Final answer
    x = 1,692.08

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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.