Home / 1,910.76-2,638.46-1,437.84

Finding the Fourth Proportional to 1,910.76, 2,638.46 and 1,437.84

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Solution

The fourth proportional to 1,910.76, 2,638.46 and 1,437.84 is: 1,985.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.76 : 2,638.46 = 1,437.84 : x
  2. Step 2: Convert to fraction form
    1,910.76/2,638.46 = 1,437.84/x
  3. Step 3: Cross multiply
    1,910.76x = 2,638.46 × 1,437.84
  4. Step 4: Simplify right side
    1,910.76x = 3,793,683.33
  5. Step 5: Solve for x
    x = 3,793,683.33/1,910.76
  6. Step 6: Final answer
    x = 1,985.43

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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.