Home / 1,588.20-2,191.83-958.88

Finding the Fourth Proportional to 1,588.20, 2,191.83 and 958.88

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Solution

The fourth proportional to 1,588.20, 2,191.83 and 958.88 is: 1,323.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.20 : 2,191.83 = 958.88 : x
  2. Step 2: Convert to fraction form
    1,588.20/2,191.83 = 958.88/x
  3. Step 3: Cross multiply
    1,588.20x = 2,191.83 × 958.88
  4. Step 4: Simplify right side
    1,588.20x = 2,101,691.51
  5. Step 5: Solve for x
    x = 2,101,691.51/1,588.20
  6. Step 6: Final answer
    x = 1,323.32

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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.