Home / 5,679.10-7,834.08-4,107.70

Finding the Fourth Proportional to 5,679.10, 7,834.08 and 4,107.70

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Solution

The fourth proportional to 5,679.10, 7,834.08 and 4,107.70 is: 5,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.10 : 7,834.08 = 4,107.70 : x
  2. Step 2: Convert to fraction form
    5,679.10/7,834.08 = 4,107.70/x
  3. Step 3: Cross multiply
    5,679.10x = 7,834.08 × 4,107.70
  4. Step 4: Simplify right side
    5,679.10x = 32,180,050.42
  5. Step 5: Solve for x
    x = 32,180,050.42/5,679.10
  6. Step 6: Final answer
    x = 5,666.40

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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.