Home / 3,973.12-5,481.48-2,400.64

Finding the Fourth Proportional to 3,973.12, 5,481.48 and 2,400.64

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Solution

The fourth proportional to 3,973.12, 5,481.48 and 2,400.64 is: 3,312.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.12 : 5,481.48 = 2,400.64 : x
  2. Step 2: Convert to fraction form
    3,973.12/5,481.48 = 2,400.64/x
  3. Step 3: Cross multiply
    3,973.12x = 5,481.48 × 2,400.64
  4. Step 4: Simplify right side
    3,973.12x = 13,159,060.15
  5. Step 5: Solve for x
    x = 13,159,060.15/3,973.12
  6. Step 6: Final answer
    x = 3,312.02

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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.