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Finding the Fourth Proportional to 3,007.71, 4,509.95 and 927.09

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Solution

The fourth proportional to 3,007.71, 4,509.95 and 927.09 is: 1,390.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.71 : 4,509.95 = 927.09 : x
  2. Step 2: Convert to fraction form
    3,007.71/4,509.95 = 927.09/x
  3. Step 3: Cross multiply
    3,007.71x = 4,509.95 × 927.09
  4. Step 4: Simplify right side
    3,007.71x = 4,181,124.91
  5. Step 5: Solve for x
    x = 4,181,124.91/3,007.71
  6. Step 6: Final answer
    x = 1,390.14

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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.