Home / 6,428.72-9,640.24-2,267.50

Finding the Fourth Proportional to 6,428.72, 9,640.24 and 2,267.50

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Solution

The fourth proportional to 6,428.72, 9,640.24 and 2,267.50 is: 3,400.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.72 : 9,640.24 = 2,267.50 : x
  2. Step 2: Convert to fraction form
    6,428.72/9,640.24 = 2,267.50/x
  3. Step 3: Cross multiply
    6,428.72x = 9,640.24 × 2,267.50
  4. Step 4: Simplify right side
    6,428.72x = 21,859,214.43
  5. Step 5: Solve for x
    x = 21,859,214.43/6,428.72
  6. Step 6: Final answer
    x = 3,400.25

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1.5x scale

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.