Home / 1,938.39-2,674.93-1,131.00

Finding the Fourth Proportional to 1,938.39, 2,674.93 and 1,131.00

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Solution

The fourth proportional to 1,938.39, 2,674.93 and 1,131.00 is: 1,560.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.39 : 2,674.93 = 1,131.00 : x
  2. Step 2: Convert to fraction form
    1,938.39/2,674.93 = 1,131.00/x
  3. Step 3: Cross multiply
    1,938.39x = 2,674.93 × 1,131.00
  4. Step 4: Simplify right side
    1,938.39x = 3,025,340.49
  5. Step 5: Solve for x
    x = 3,025,340.49/1,938.39
  6. Step 6: Final answer
    x = 1,560.75

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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.