Home / 4,256.96-5,875-2,578.78

Finding the Fourth Proportional to 4,256.96, 5,875 and 2,578.78

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Solution

The fourth proportional to 4,256.96, 5,875 and 2,578.78 is: 3,558.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,256.96 : 5,875 = 2,578.78 : x
  2. Step 2: Convert to fraction form
    4,256.96/5,875 = 2,578.78/x
  3. Step 3: Cross multiply
    4,256.96x = 5,875 × 2,578.78
  4. Step 4: Simplify right side
    4,256.96x = 15,150,332.50
  5. Step 5: Solve for x
    x = 15,150,332.50/4,256.96
  6. Step 6: Final answer
    x = 3,558.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.