Home / 3,869.02-5,343.60-2,615.25

Finding the Fourth Proportional to 3,869.02, 5,343.60 and 2,615.25

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Solution

The fourth proportional to 3,869.02, 5,343.60 and 2,615.25 is: 3,611.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.02 : 5,343.60 = 2,615.25 : x
  2. Step 2: Convert to fraction form
    3,869.02/5,343.60 = 2,615.25/x
  3. Step 3: Cross multiply
    3,869.02x = 5,343.60 × 2,615.25
  4. Step 4: Simplify right side
    3,869.02x = 13,974,849.90
  5. Step 5: Solve for x
    x = 13,974,849.90/3,869.02
  6. Step 6: Final answer
    x = 3,611.99

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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.