Home / 1,453.49-2,180.08-759.87

Finding the Fourth Proportional to 1,453.49, 2,180.08 and 759.87

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Solution

The fourth proportional to 1,453.49, 2,180.08 and 759.87 is: 1,139.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.49 : 2,180.08 = 759.87 : x
  2. Step 2: Convert to fraction form
    1,453.49/2,180.08 = 759.87/x
  3. Step 3: Cross multiply
    1,453.49x = 2,180.08 × 759.87
  4. Step 4: Simplify right side
    1,453.49x = 1,656,577.39
  5. Step 5: Solve for x
    x = 1,656,577.39/1,453.49
  6. Step 6: Final answer
    x = 1,139.72

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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.