Home / 3,846.81-5,306.47-2,585.64

Finding the Fourth Proportional to 3,846.81, 5,306.47 and 2,585.64

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Solution

The fourth proportional to 3,846.81, 5,306.47 and 2,585.64 is: 3,566.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.81 : 5,306.47 = 2,585.64 : x
  2. Step 2: Convert to fraction form
    3,846.81/5,306.47 = 2,585.64/x
  3. Step 3: Cross multiply
    3,846.81x = 5,306.47 × 2,585.64
  4. Step 4: Simplify right side
    3,846.81x = 13,720,621.09
  5. Step 5: Solve for x
    x = 13,720,621.09/3,846.81
  6. Step 6: Final answer
    x = 3,566.75

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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.