Home / 3,311.02-4,569.12-1,818.90

Finding the Fourth Proportional to 3,311.02, 4,569.12 and 1,818.90

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Solution

The fourth proportional to 3,311.02, 4,569.12 and 1,818.90 is: 2,510.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.02 : 4,569.12 = 1,818.90 : x
  2. Step 2: Convert to fraction form
    3,311.02/4,569.12 = 1,818.90/x
  3. Step 3: Cross multiply
    3,311.02x = 4,569.12 × 1,818.90
  4. Step 4: Simplify right side
    3,311.02x = 8,310,772.37
  5. Step 5: Solve for x
    x = 8,310,772.37/3,311.02
  6. Step 6: Final answer
    x = 2,510.03

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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.