Home / 4,940.10-6,817.98-2,816.40

Finding the Fourth Proportional to 4,940.10, 6,817.98 and 2,816.40

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Solution

The fourth proportional to 4,940.10, 6,817.98 and 2,816.40 is: 3,887.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940.10 : 6,817.98 = 2,816.40 : x
  2. Step 2: Convert to fraction form
    4,940.10/6,817.98 = 2,816.40/x
  3. Step 3: Cross multiply
    4,940.10x = 6,817.98 × 2,816.40
  4. Step 4: Simplify right side
    4,940.10x = 19,202,158.87
  5. Step 5: Solve for x
    x = 19,202,158.87/4,940.10
  6. Step 6: Final answer
    x = 3,887.00

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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.