Home / 1,877.35-2,588.48-1,213.96

Finding the Fourth Proportional to 1,877.35, 2,588.48 and 1,213.96

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Solution

The fourth proportional to 1,877.35, 2,588.48 and 1,213.96 is: 1,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.35 : 2,588.48 = 1,213.96 : x
  2. Step 2: Convert to fraction form
    1,877.35/2,588.48 = 1,213.96/x
  3. Step 3: Cross multiply
    1,877.35x = 2,588.48 × 1,213.96
  4. Step 4: Simplify right side
    1,877.35x = 3,142,311.18
  5. Step 5: Solve for x
    x = 3,142,311.18/1,877.35
  6. Step 6: Final answer
    x = 1,673.80

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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.