Home / 1,590.88-2,195.37-961.93

Finding the Fourth Proportional to 1,590.88, 2,195.37 and 961.93

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Solution

The fourth proportional to 1,590.88, 2,195.37 and 961.93 is: 1,327.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.88 : 2,195.37 = 961.93 : x
  2. Step 2: Convert to fraction form
    1,590.88/2,195.37 = 961.93/x
  3. Step 3: Cross multiply
    1,590.88x = 2,195.37 × 961.93
  4. Step 4: Simplify right side
    1,590.88x = 2,111,792.26
  5. Step 5: Solve for x
    x = 2,111,792.26/1,590.88
  6. Step 6: Final answer
    x = 1,327.44

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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.