Home / 2,359.57-3,255.90-1,311.85

Finding the Fourth Proportional to 2,359.57, 3,255.90 and 1,311.85

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Solution

The fourth proportional to 2,359.57, 3,255.90 and 1,311.85 is: 1,810.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,359.57 : 3,255.90 = 1,311.85 : x
  2. Step 2: Convert to fraction form
    2,359.57/3,255.90 = 1,311.85/x
  3. Step 3: Cross multiply
    2,359.57x = 3,255.90 × 1,311.85
  4. Step 4: Simplify right side
    2,359.57x = 4,271,252.42
  5. Step 5: Solve for x
    x = 4,271,252.42/2,359.57
  6. Step 6: Final answer
    x = 1,810.18

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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.