Home / 5,384.80-8,084.40-3,440.80

Finding the Fourth Proportional to 5,384.80, 8,084.40 and 3,440.80

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Solution

The fourth proportional to 5,384.80, 8,084.40 and 3,440.80 is: 5,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.80 : 8,084.40 = 3,440.80 : x
  2. Step 2: Convert to fraction form
    5,384.80/8,084.40 = 3,440.80/x
  3. Step 3: Cross multiply
    5,384.80x = 8,084.40 × 3,440.80
  4. Step 4: Simplify right side
    5,384.80x = 27,816,803.52
  5. Step 5: Solve for x
    x = 27,816,803.52/5,384.80
  6. Step 6: Final answer
    x = 5,165.80

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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.