Home / 6,400.90-9,600.72-2,240.14

Finding the Fourth Proportional to 6,400.90, 9,600.72 and 2,240.14

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Solution

The fourth proportional to 6,400.90, 9,600.72 and 2,240.14 is: 3,359.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,400.90 : 9,600.72 = 2,240.14 : x
  2. Step 2: Convert to fraction form
    6,400.90/9,600.72 = 2,240.14/x
  3. Step 3: Cross multiply
    6,400.90x = 9,600.72 × 2,240.14
  4. Step 4: Simplify right side
    6,400.90x = 21,506,956.90
  5. Step 5: Solve for x
    x = 21,506,956.90/6,400.90
  6. Step 6: Final answer
    x = 3,359.99

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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.