Home / 3,851.41-5,315.01-2,259.20

Finding the Fourth Proportional to 3,851.41, 5,315.01 and 2,259.20

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Solution

The fourth proportional to 3,851.41, 5,315.01 and 2,259.20 is: 3,117.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.41 : 5,315.01 = 2,259.20 : x
  2. Step 2: Convert to fraction form
    3,851.41/5,315.01 = 2,259.20/x
  3. Step 3: Cross multiply
    3,851.41x = 5,315.01 × 2,259.20
  4. Step 4: Simplify right side
    3,851.41x = 12,007,644.02
  5. Step 5: Solve for x
    x = 12,007,644.02/3,851.41
  6. Step 6: Final answer
    x = 3,117.73

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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.