Home / 1,588.32-2,191.68-889.56

Finding the Fourth Proportional to 1,588.32, 2,191.68 and 889.56

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Solution

The fourth proportional to 1,588.32, 2,191.68 and 889.56 is: 1,227.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.32 : 2,191.68 = 889.56 : x
  2. Step 2: Convert to fraction form
    1,588.32/2,191.68 = 889.56/x
  3. Step 3: Cross multiply
    1,588.32x = 2,191.68 × 889.56
  4. Step 4: Simplify right side
    1,588.32x = 1,949,630.86
  5. Step 5: Solve for x
    x = 1,949,630.86/1,588.32
  6. Step 6: Final answer
    x = 1,227.48

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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.