Home / 7,107.94-9,807.96-4,123.90

Finding the Fourth Proportional to 7,107.94, 9,807.96 and 4,123.90

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Solution

The fourth proportional to 7,107.94, 9,807.96 and 4,123.90 is: 5,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.94 : 9,807.96 = 4,123.90 : x
  2. Step 2: Convert to fraction form
    7,107.94/9,807.96 = 4,123.90/x
  3. Step 3: Cross multiply
    7,107.94x = 9,807.96 × 4,123.90
  4. Step 4: Simplify right side
    7,107.94x = 40,447,046.24
  5. Step 5: Solve for x
    x = 40,447,046.24/7,107.94
  6. Step 6: Final answer
    x = 5,690.40

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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.