Home / 1,936.80-2,672.58-1,150.74

Finding the Fourth Proportional to 1,936.80, 2,672.58 and 1,150.74

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Solution

The fourth proportional to 1,936.80, 2,672.58 and 1,150.74 is: 1,587.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.80 : 2,672.58 = 1,150.74 : x
  2. Step 2: Convert to fraction form
    1,936.80/2,672.58 = 1,150.74/x
  3. Step 3: Cross multiply
    1,936.80x = 2,672.58 × 1,150.74
  4. Step 4: Simplify right side
    1,936.80x = 3,075,444.71
  5. Step 5: Solve for x
    x = 3,075,444.71/1,936.80
  6. Step 6: Final answer
    x = 1,587.90

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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.