Home / 7,620.51-11,431.80-3,461.58

Finding the Fourth Proportional to 7,620.51, 11,431.80 and 3,461.58

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Solution

The fourth proportional to 7,620.51, 11,431.80 and 3,461.58 is: 5,192.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.51 : 11,431.80 = 3,461.58 : x
  2. Step 2: Convert to fraction form
    7,620.51/11,431.80 = 3,461.58/x
  3. Step 3: Cross multiply
    7,620.51x = 11,431.80 × 3,461.58
  4. Step 4: Simplify right side
    7,620.51x = 39,572,090.24
  5. Step 5: Solve for x
    x = 39,572,090.24/7,620.51
  6. Step 6: Final answer
    x = 5,192.84

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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.