Home / 3,859.48-5,325.67-2,851.72

Finding the Fourth Proportional to 3,859.48, 5,325.67 and 2,851.72

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Solution

The fourth proportional to 3,859.48, 5,325.67 and 2,851.72 is: 3,935.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.48 : 5,325.67 = 2,851.72 : x
  2. Step 2: Convert to fraction form
    3,859.48/5,325.67 = 2,851.72/x
  3. Step 3: Cross multiply
    3,859.48x = 5,325.67 × 2,851.72
  4. Step 4: Simplify right side
    3,859.48x = 15,187,323.82
  5. Step 5: Solve for x
    x = 15,187,323.82/3,859.48
  6. Step 6: Final answer
    x = 3,935.07

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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.