Home / 5,090.82-7,635.64-1,970.55

Finding the Fourth Proportional to 5,090.82, 7,635.64 and 1,970.55

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Solution

The fourth proportional to 5,090.82, 7,635.64 and 1,970.55 is: 2,955.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.82 : 7,635.64 = 1,970.55 : x
  2. Step 2: Convert to fraction form
    5,090.82/7,635.64 = 1,970.55/x
  3. Step 3: Cross multiply
    5,090.82x = 7,635.64 × 1,970.55
  4. Step 4: Simplify right side
    5,090.82x = 15,046,436.19
  5. Step 5: Solve for x
    x = 15,046,436.19/5,090.82
  6. Step 6: Final answer
    x = 2,955.60

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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.