Home / 3,808.79-5,256.20-2,316.77

Finding the Fourth Proportional to 3,808.79, 5,256.20 and 2,316.77

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Solution

The fourth proportional to 3,808.79, 5,256.20 and 2,316.77 is: 3,197.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.79 : 5,256.20 = 2,316.77 : x
  2. Step 2: Convert to fraction form
    3,808.79/5,256.20 = 2,316.77/x
  3. Step 3: Cross multiply
    3,808.79x = 5,256.20 × 2,316.77
  4. Step 4: Simplify right side
    3,808.79x = 12,177,406.47
  5. Step 5: Solve for x
    x = 12,177,406.47/3,808.79
  6. Step 6: Final answer
    x = 3,197.19

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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.