Home / 2,330.43-3,495.35-687.15

Finding the Fourth Proportional to 2,330.43, 3,495.35 and 687.15

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Solution

The fourth proportional to 2,330.43, 3,495.35 and 687.15 is: 1,030.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.43 : 3,495.35 = 687.15 : x
  2. Step 2: Convert to fraction form
    2,330.43/3,495.35 = 687.15/x
  3. Step 3: Cross multiply
    2,330.43x = 3,495.35 × 687.15
  4. Step 4: Simplify right side
    2,330.43x = 2,401,826.32
  5. Step 5: Solve for x
    x = 2,401,826.32/2,330.43
  6. Step 6: Final answer
    x = 1,030.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.