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Finding the Fourth Proportional to 5,797.50, 8,007.15 and 3,931.26

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Solution

The fourth proportional to 5,797.50, 8,007.15 and 3,931.26 is: 5,429.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,797.50 : 8,007.15 = 3,931.26 : x
  2. Step 2: Convert to fraction form
    5,797.50/8,007.15 = 3,931.26/x
  3. Step 3: Cross multiply
    5,797.50x = 8,007.15 × 3,931.26
  4. Step 4: Simplify right side
    5,797.50x = 31,478,188.51
  5. Step 5: Solve for x
    x = 31,478,188.51/5,797.50
  6. Step 6: Final answer
    x = 5,429.61

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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.