Home / 1,588.22-2,189.32-1,251.51

Finding the Fourth Proportional to 1,588.22, 2,189.32 and 1,251.51

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Solution

The fourth proportional to 1,588.22, 2,189.32 and 1,251.51 is: 1,725.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.22 : 2,189.32 = 1,251.51 : x
  2. Step 2: Convert to fraction form
    1,588.22/2,189.32 = 1,251.51/x
  3. Step 3: Cross multiply
    1,588.22x = 2,189.32 × 1,251.51
  4. Step 4: Simplify right side
    1,588.22x = 2,739,955.87
  5. Step 5: Solve for x
    x = 2,739,955.87/1,588.22
  6. Step 6: Final answer
    x = 1,725.18

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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.