Home / 1,590.57-2,193.68-1,120.03

Finding the Fourth Proportional to 1,590.57, 2,193.68 and 1,120.03

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Solution

The fourth proportional to 1,590.57, 2,193.68 and 1,120.03 is: 1,544.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.57 : 2,193.68 = 1,120.03 : x
  2. Step 2: Convert to fraction form
    1,590.57/2,193.68 = 1,120.03/x
  3. Step 3: Cross multiply
    1,590.57x = 2,193.68 × 1,120.03
  4. Step 4: Simplify right side
    1,590.57x = 2,456,987.41
  5. Step 5: Solve for x
    x = 2,456,987.41/1,590.57
  6. Step 6: Final answer
    x = 1,544.72

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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.