Home / 2,358.89-3,255.29-1,311.02

Finding the Fourth Proportional to 2,358.89, 3,255.29 and 1,311.02

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Solution

The fourth proportional to 2,358.89, 3,255.29 and 1,311.02 is: 1,809.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,358.89 : 3,255.29 = 1,311.02 : x
  2. Step 2: Convert to fraction form
    2,358.89/3,255.29 = 1,311.02/x
  3. Step 3: Cross multiply
    2,358.89x = 3,255.29 × 1,311.02
  4. Step 4: Simplify right side
    2,358.89x = 4,267,727.46
  5. Step 5: Solve for x
    x = 4,267,727.46/2,358.89
  6. Step 6: Final answer
    x = 1,809.21

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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.