Home / 2,663.89-3,988.06-1,775.41

Finding the Fourth Proportional to 2,663.89, 3,988.06 and 1,775.41

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Solution

The fourth proportional to 2,663.89, 3,988.06 and 1,775.41 is: 2,657.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663.89 : 3,988.06 = 1,775.41 : x
  2. Step 2: Convert to fraction form
    2,663.89/3,988.06 = 1,775.41/x
  3. Step 3: Cross multiply
    2,663.89x = 3,988.06 × 1,775.41
  4. Step 4: Simplify right side
    2,663.89x = 7,080,427.20
  5. Step 5: Solve for x
    x = 7,080,427.20/2,663.89
  6. Step 6: Final answer
    x = 2,657.93

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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.