Home / 1,936.20-2,672.40-1,150.68

Finding the Fourth Proportional to 1,936.20, 2,672.40 and 1,150.68

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Solution

The fourth proportional to 1,936.20, 2,672.40 and 1,150.68 is: 1,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.20 : 2,672.40 = 1,150.68 : x
  2. Step 2: Convert to fraction form
    1,936.20/2,672.40 = 1,150.68/x
  3. Step 3: Cross multiply
    1,936.20x = 2,672.40 × 1,150.68
  4. Step 4: Simplify right side
    1,936.20x = 3,075,077.23
  5. Step 5: Solve for x
    x = 3,075,077.23/1,936.20
  6. Step 6: Final answer
    x = 1,588.20

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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.