Home / 1,938.39-2,673.02-1,659.55

Finding the Fourth Proportional to 1,938.39, 2,673.02 and 1,659.55

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Solution

The fourth proportional to 1,938.39, 2,673.02 and 1,659.55 is: 2,288.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.39 : 2,673.02 = 1,659.55 : x
  2. Step 2: Convert to fraction form
    1,938.39/2,673.02 = 1,659.55/x
  3. Step 3: Cross multiply
    1,938.39x = 2,673.02 × 1,659.55
  4. Step 4: Simplify right side
    1,938.39x = 4,436,010.34
  5. Step 5: Solve for x
    x = 4,436,010.34/1,938.39
  6. Step 6: Final answer
    x = 2,288.50

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1.5x scale

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.