Home / 2,515.36-3,772.88-1,054.08

Finding the Fourth Proportional to 2,515.36, 3,772.88 and 1,054.08

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Solution

The fourth proportional to 2,515.36, 3,772.88 and 1,054.08 is: 1,581.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.36 : 3,772.88 = 1,054.08 : x
  2. Step 2: Convert to fraction form
    2,515.36/3,772.88 = 1,054.08/x
  3. Step 3: Cross multiply
    2,515.36x = 3,772.88 × 1,054.08
  4. Step 4: Simplify right side
    2,515.36x = 3,976,917.35
  5. Step 5: Solve for x
    x = 3,976,917.35/2,515.36
  6. Step 6: Final answer
    x = 1,581.05

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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.