Home / 1,373.12-1,878.54-1,367.24

Finding the Fourth Proportional to 1,373.12, 1,878.54 and 1,367.24

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Solution

The fourth proportional to 1,373.12, 1,878.54 and 1,367.24 is: 1,870.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373.12 : 1,878.54 = 1,367.24 : x
  2. Step 2: Convert to fraction form
    1,373.12/1,878.54 = 1,367.24/x
  3. Step 3: Cross multiply
    1,373.12x = 1,878.54 × 1,367.24
  4. Step 4: Simplify right side
    1,373.12x = 2,568,405.64
  5. Step 5: Solve for x
    x = 2,568,405.64/1,373.12
  6. Step 6: Final answer
    x = 1,870.50

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.