Home / 1,590.42-2,189.79-1,444.62

Finding the Fourth Proportional to 1,590.42, 2,189.79 and 1,444.62

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Solution

The fourth proportional to 1,590.42, 2,189.79 and 1,444.62 is: 1,989.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.42 : 2,189.79 = 1,444.62 : x
  2. Step 2: Convert to fraction form
    1,590.42/2,189.79 = 1,444.62/x
  3. Step 3: Cross multiply
    1,590.42x = 2,189.79 × 1,444.62
  4. Step 4: Simplify right side
    1,590.42x = 3,163,414.43
  5. Step 5: Solve for x
    x = 3,163,414.43/1,590.42
  6. Step 6: Final answer
    x = 1,989.04

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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.