Home / 5,256.35-7,880.87-2,480.68

Finding the Fourth Proportional to 5,256.35, 7,880.87 and 2,480.68

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Solution

The fourth proportional to 5,256.35, 7,880.87 and 2,480.68 is: 3,719.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256.35 : 7,880.87 = 2,480.68 : x
  2. Step 2: Convert to fraction form
    5,256.35/7,880.87 = 2,480.68/x
  3. Step 3: Cross multiply
    5,256.35x = 7,880.87 × 2,480.68
  4. Step 4: Simplify right side
    5,256.35x = 19,549,916.59
  5. Step 5: Solve for x
    x = 19,549,916.59/5,256.35
  6. Step 6: Final answer
    x = 3,719.30

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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.