Home / 1,360.64-2,037.86-1,329.89

Finding the Fourth Proportional to 1,360.64, 2,037.86 and 1,329.89

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Solution

The fourth proportional to 1,360.64, 2,037.86 and 1,329.89 is: 1,991.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.64 : 2,037.86 = 1,329.89 : x
  2. Step 2: Convert to fraction form
    1,360.64/2,037.86 = 1,329.89/x
  3. Step 3: Cross multiply
    1,360.64x = 2,037.86 × 1,329.89
  4. Step 4: Simplify right side
    1,360.64x = 2,710,129.64
  5. Step 5: Solve for x
    x = 2,710,129.64/1,360.64
  6. Step 6: Final answer
    x = 1,991.81

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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.