Home / 5,507.36-8,261.28-1,611.78

Finding the Fourth Proportional to 5,507.36, 8,261.28 and 1,611.78

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Solution

The fourth proportional to 5,507.36, 8,261.28 and 1,611.78 is: 2,417.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,507.36 : 8,261.28 = 1,611.78 : x
  2. Step 2: Convert to fraction form
    5,507.36/8,261.28 = 1,611.78/x
  3. Step 3: Cross multiply
    5,507.36x = 8,261.28 × 1,611.78
  4. Step 4: Simplify right side
    5,507.36x = 13,315,365.88
  5. Step 5: Solve for x
    x = 13,315,365.88/5,507.36
  6. Step 6: Final answer
    x = 2,417.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.