Home / 5,256.74-7,878.16-2,479.59

Finding the Fourth Proportional to 5,256.74, 7,878.16 and 2,479.59

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Solution

The fourth proportional to 5,256.74, 7,878.16 and 2,479.59 is: 3,716.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256.74 : 7,878.16 = 2,479.59 : x
  2. Step 2: Convert to fraction form
    5,256.74/7,878.16 = 2,479.59/x
  3. Step 3: Cross multiply
    5,256.74x = 7,878.16 × 2,479.59
  4. Step 4: Simplify right side
    5,256.74x = 19,534,606.75
  5. Step 5: Solve for x
    x = 19,534,606.75/5,256.74
  6. Step 6: Final answer
    x = 3,716.11

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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.