Home / 3,851.24-5,315.13-2,358.81

Finding the Fourth Proportional to 3,851.24, 5,315.13 and 2,358.81

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Solution

The fourth proportional to 3,851.24, 5,315.13 and 2,358.81 is: 3,255.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.24 : 5,315.13 = 2,358.81 : x
  2. Step 2: Convert to fraction form
    3,851.24/5,315.13 = 2,358.81/x
  3. Step 3: Cross multiply
    3,851.24x = 5,315.13 × 2,358.81
  4. Step 4: Simplify right side
    3,851.24x = 12,537,381.80
  5. Step 5: Solve for x
    x = 12,537,381.80/3,851.24
  6. Step 6: Final answer
    x = 3,255.42

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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.