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Finding the Fourth Proportional to 3,005.92, 4,509.38 and 925.93

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Solution

The fourth proportional to 3,005.92, 4,509.38 and 925.93 is: 1,389.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.92 : 4,509.38 = 925.93 : x
  2. Step 2: Convert to fraction form
    3,005.92/4,509.38 = 925.93/x
  3. Step 3: Cross multiply
    3,005.92x = 4,509.38 × 925.93
  4. Step 4: Simplify right side
    3,005.92x = 4,175,345.87
  5. Step 5: Solve for x
    x = 4,175,345.87/3,005.92
  6. Step 6: Final answer
    x = 1,389.04

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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.