Home / 1,938.88-2,910.40-1,073.92

Finding the Fourth Proportional to 1,938.88, 2,910.40 and 1,073.92

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Solution

The fourth proportional to 1,938.88, 2,910.40 and 1,073.92 is: 1,612.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.88 : 2,910.40 = 1,073.92 : x
  2. Step 2: Convert to fraction form
    1,938.88/2,910.40 = 1,073.92/x
  3. Step 3: Cross multiply
    1,938.88x = 2,910.40 × 1,073.92
  4. Step 4: Simplify right side
    1,938.88x = 3,125,536.77
  5. Step 5: Solve for x
    x = 3,125,536.77/1,938.88
  6. Step 6: Final answer
    x = 1,612.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.