Home / 2,987.36-4,479.60-1,344.32

Finding the Fourth Proportional to 2,987.36, 4,479.60 and 1,344.32

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Solution

The fourth proportional to 2,987.36, 4,479.60 and 1,344.32 is: 2,015.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.36 : 4,479.60 = 1,344.32 : x
  2. Step 2: Convert to fraction form
    2,987.36/4,479.60 = 1,344.32/x
  3. Step 3: Cross multiply
    2,987.36x = 4,479.60 × 1,344.32
  4. Step 4: Simplify right side
    2,987.36x = 6,022,015.87
  5. Step 5: Solve for x
    x = 6,022,015.87/2,987.36
  6. Step 6: Final answer
    x = 2,015.83

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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.