Home / 4,654.82-6,420.12-3,080.18

Finding the Fourth Proportional to 4,654.82, 6,420.12 and 3,080.18

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Solution

The fourth proportional to 4,654.82, 6,420.12 and 3,080.18 is: 4,248.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,654.82 : 6,420.12 = 3,080.18 : x
  2. Step 2: Convert to fraction form
    4,654.82/6,420.12 = 3,080.18/x
  3. Step 3: Cross multiply
    4,654.82x = 6,420.12 × 3,080.18
  4. Step 4: Simplify right side
    4,654.82x = 19,775,125.22
  5. Step 5: Solve for x
    x = 19,775,125.22/4,654.82
  6. Step 6: Final answer
    x = 4,248.31

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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.