Home / 5,680.24-7,834.26-3,911.20

Finding the Fourth Proportional to 5,680.24, 7,834.26 and 3,911.20

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Solution

The fourth proportional to 5,680.24, 7,834.26 and 3,911.20 is: 5,394.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.24 : 7,834.26 = 3,911.20 : x
  2. Step 2: Convert to fraction form
    5,680.24/7,834.26 = 3,911.20/x
  3. Step 3: Cross multiply
    5,680.24x = 7,834.26 × 3,911.20
  4. Step 4: Simplify right side
    5,680.24x = 30,641,357.71
  5. Step 5: Solve for x
    x = 30,641,357.71/5,680.24
  6. Step 6: Final answer
    x = 5,394.38

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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.