Home / 3,999.08-5,521.56-2,507.60

Finding the Fourth Proportional to 3,999.08, 5,521.56 and 2,507.60

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Solution

The fourth proportional to 3,999.08, 5,521.56 and 2,507.60 is: 3,462.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.08 : 5,521.56 = 2,507.60 : x
  2. Step 2: Convert to fraction form
    3,999.08/5,521.56 = 2,507.60/x
  3. Step 3: Cross multiply
    3,999.08x = 5,521.56 × 2,507.60
  4. Step 4: Simplify right side
    3,999.08x = 13,845,863.86
  5. Step 5: Solve for x
    x = 13,845,863.86/3,999.08
  6. Step 6: Final answer
    x = 3,462.26

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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.