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Finding the Fourth Proportional to 5,007.30, 6,909.47 and 2,768.87

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Solution

The fourth proportional to 5,007.30, 6,909.47 and 2,768.87 is: 3,820.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.30 : 6,909.47 = 2,768.87 : x
  2. Step 2: Convert to fraction form
    5,007.30/6,909.47 = 2,768.87/x
  3. Step 3: Cross multiply
    5,007.30x = 6,909.47 × 2,768.87
  4. Step 4: Simplify right side
    5,007.30x = 19,131,375.81
  5. Step 5: Solve for x
    x = 19,131,375.81/5,007.30
  6. Step 6: Final answer
    x = 3,820.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.