Home / 1,319.14-1,977.36-496.36

Finding the Fourth Proportional to 1,319.14, 1,977.36 and 496.36

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Solution

The fourth proportional to 1,319.14, 1,977.36 and 496.36 is: 744.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319.14 : 1,977.36 = 496.36 : x
  2. Step 2: Convert to fraction form
    1,319.14/1,977.36 = 496.36/x
  3. Step 3: Cross multiply
    1,319.14x = 1,977.36 × 496.36
  4. Step 4: Simplify right side
    1,319.14x = 981,482.41
  5. Step 5: Solve for x
    x = 981,482.41/1,319.14
  6. Step 6: Final answer
    x = 744.03

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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.