Home / 1,938.32-2,677.72-1,675.88

Finding the Fourth Proportional to 1,938.32, 2,677.72 and 1,675.88

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Solution

The fourth proportional to 1,938.32, 2,677.72 and 1,675.88 is: 2,315.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.32 : 2,677.72 = 1,675.88 : x
  2. Step 2: Convert to fraction form
    1,938.32/2,677.72 = 1,675.88/x
  3. Step 3: Cross multiply
    1,938.32x = 2,677.72 × 1,675.88
  4. Step 4: Simplify right side
    1,938.32x = 4,487,537.39
  5. Step 5: Solve for x
    x = 4,487,537.39/1,938.32
  6. Step 6: Final answer
    x = 2,315.17

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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.