Home / 1,588.44-2,187.09-1,307.78

Finding the Fourth Proportional to 1,588.44, 2,187.09 and 1,307.78

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Solution

The fourth proportional to 1,588.44, 2,187.09 and 1,307.78 is: 1,800.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.44 : 2,187.09 = 1,307.78 : x
  2. Step 2: Convert to fraction form
    1,588.44/2,187.09 = 1,307.78/x
  3. Step 3: Cross multiply
    1,588.44x = 2,187.09 × 1,307.78
  4. Step 4: Simplify right side
    1,588.44x = 2,860,221.62
  5. Step 5: Solve for x
    x = 2,860,221.62/1,588.44
  6. Step 6: Final answer
    x = 1,800.65

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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.