Home / 2,989.45-4,125.23-1,663.10

Finding the Fourth Proportional to 2,989.45, 4,125.23 and 1,663.10

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Solution

The fourth proportional to 2,989.45, 4,125.23 and 1,663.10 is: 2,294.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.45 : 4,125.23 = 1,663.10 : x
  2. Step 2: Convert to fraction form
    2,989.45/4,125.23 = 1,663.10/x
  3. Step 3: Cross multiply
    2,989.45x = 4,125.23 × 1,663.10
  4. Step 4: Simplify right side
    2,989.45x = 6,860,670.01
  5. Step 5: Solve for x
    x = 6,860,670.01/2,989.45
  6. Step 6: Final answer
    x = 2,294.96

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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.