Home / 3,851.79-5,315.38-2,359.77

Finding the Fourth Proportional to 3,851.79, 5,315.38 and 2,359.77

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Solution

The fourth proportional to 3,851.79, 5,315.38 and 2,359.77 is: 3,256.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.79 : 5,315.38 = 2,359.77 : x
  2. Step 2: Convert to fraction form
    3,851.79/5,315.38 = 2,359.77/x
  3. Step 3: Cross multiply
    3,851.79x = 5,315.38 × 2,359.77
  4. Step 4: Simplify right side
    3,851.79x = 12,543,074.26
  5. Step 5: Solve for x
    x = 12,543,074.26/3,851.79
  6. Step 6: Final answer
    x = 3,256.43

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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.