Home / 1,588.21-2,191.43-958.53

Finding the Fourth Proportional to 1,588.21, 2,191.43 and 958.53

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Solution

The fourth proportional to 1,588.21, 2,191.43 and 958.53 is: 1,322.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.21 : 2,191.43 = 958.53 : x
  2. Step 2: Convert to fraction form
    1,588.21/2,191.43 = 958.53/x
  3. Step 3: Cross multiply
    1,588.21x = 2,191.43 × 958.53
  4. Step 4: Simplify right side
    1,588.21x = 2,100,559.32
  5. Step 5: Solve for x
    x = 2,100,559.32/1,588.21
  6. Step 6: Final answer
    x = 1,322.60

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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.