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Finding the Fourth Proportional to 6,400.64, 9,603.74 and 2,243.62

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Solution

The fourth proportional to 6,400.64, 9,603.74 and 2,243.62 is: 3,366.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,400.64 : 9,603.74 = 2,243.62 : x
  2. Step 2: Convert to fraction form
    6,400.64/9,603.74 = 2,243.62/x
  3. Step 3: Cross multiply
    6,400.64x = 9,603.74 × 2,243.62
  4. Step 4: Simplify right side
    6,400.64x = 21,547,143.14
  5. Step 5: Solve for x
    x = 21,547,143.14/6,400.64
  6. Step 6: Final answer
    x = 3,366.40

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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.