Home / 5,664.57-7,816.91-3,146.78

Finding the Fourth Proportional to 5,664.57, 7,816.91 and 3,146.78

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Solution

The fourth proportional to 5,664.57, 7,816.91 and 3,146.78 is: 4,342.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,664.57 : 7,816.91 = 3,146.78 : x
  2. Step 2: Convert to fraction form
    5,664.57/7,816.91 = 3,146.78/x
  3. Step 3: Cross multiply
    5,664.57x = 7,816.91 × 3,146.78
  4. Step 4: Simplify right side
    5,664.57x = 24,598,041.23
  5. Step 5: Solve for x
    x = 24,598,041.23/5,664.57
  6. Step 6: Final answer
    x = 4,342.44

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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.