Home / 2,989.86-4,125.24-1,810.50

Finding the Fourth Proportional to 2,989.86, 4,125.24 and 1,810.50

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Solution

The fourth proportional to 2,989.86, 4,125.24 and 1,810.50 is: 2,498.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.86 : 4,125.24 = 1,810.50 : x
  2. Step 2: Convert to fraction form
    2,989.86/4,125.24 = 1,810.50/x
  3. Step 3: Cross multiply
    2,989.86x = 4,125.24 × 1,810.50
  4. Step 4: Simplify right side
    2,989.86x = 7,468,747.02
  5. Step 5: Solve for x
    x = 7,468,747.02/2,989.86
  6. Step 6: Final answer
    x = 2,498.03

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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.