Home / 6,389.46-8,816.85-3,594.78

Finding the Fourth Proportional to 6,389.46, 8,816.85 and 3,594.78

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Solution

The fourth proportional to 6,389.46, 8,816.85 and 3,594.78 is: 4,960.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.46 : 8,816.85 = 3,594.78 : x
  2. Step 2: Convert to fraction form
    6,389.46/8,816.85 = 3,594.78/x
  3. Step 3: Cross multiply
    6,389.46x = 8,816.85 × 3,594.78
  4. Step 4: Simplify right side
    6,389.46x = 31,694,636.04
  5. Step 5: Solve for x
    x = 31,694,636.04/6,389.46
  6. Step 6: Final answer
    x = 4,960.46

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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.