Home / 6,834.60-9,428.67-4,145.40

Finding the Fourth Proportional to 6,834.60, 9,428.67 and 4,145.40

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Solution

The fourth proportional to 6,834.60, 9,428.67 and 4,145.40 is: 5,718.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,834.60 : 9,428.67 = 4,145.40 : x
  2. Step 2: Convert to fraction form
    6,834.60/9,428.67 = 4,145.40/x
  3. Step 3: Cross multiply
    6,834.60x = 9,428.67 × 4,145.40
  4. Step 4: Simplify right side
    6,834.60x = 39,085,608.62
  5. Step 5: Solve for x
    x = 39,085,608.62/6,834.60
  6. Step 6: Final answer
    x = 5,718.79

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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.